neonatal Marfan syndrome

description: Neonatal Marfan syndrome is a rare, severe and life-threatening genetic disease, occurring during the neonatal period, characterized by classical Marfan syndrome manifestations in addition to facial dysmorphism (megalocornea, iridodonesis, ectopia lentis, crumpled ears, loose redundant skin giving a 'senile' facial appearance), flexion joint contractures, pulmonary emphysema, and a severe, rapidly progressive cardiovascular disease (including ascending aortic dilatation and severe mitral and/or tricuspid valve insufficiency). Additionally, skeletal manifestations (arachnodactyly, dolichostenomelia, pectus deformities) are also associated.


Marfan and Marfan-related disorder

category: biolink:Disease biolink:DiseaseOrPhenotypicFeature biolink:BiologicalEntity biolink:ThingWithTaxon biolink:NamedThing


Perrault syndrome

description: Perrault syndrome (PS) is characterized by the association of ovarian dysgenesis in females with sensorineural hearing impairment. In more recent PS reports, some authors have described neurologic abnormalities, notably progressive cerebellar ataxia and intellectual deficit.


name: disorder of folate metabolism and transport


Ehlers-Danlos syndrome, vascular type

description: Ehlers-Danlos syndrome type IV, also known as the vascular type of Ehlers-Danlos syndrome (EDS), is an inherited connective tissue disorder defined by characteristic facial features (acrogeria) in most patients, translucent skin with highly visible subcutaneous vessels on the trunk and lower back, easy bruising, and severe arterial, digestive and uterine complications, which are rarely, if at all, observed in the other forms of EDS.


name: short stature-webbed neck-heart disease syndrome

description: Short stature-webbed neck-heart disease syndrome is characterized by short stature, intellectual deficit, facial dysmorphism, short webbed neck, skin changes and congenital heart defects. It has been reported in four Arab Bedouin sibs born to consanguineous parents.


name: short stature-deafness-neutrophil dysfunction-dysmorphism syndrome

description: Short stature-deafness-neutrophil dysfunction-dysmorphism syndrome is characterized by short stature, sensorineural deafness, mutism, facial dysmorphism and abnormal neutrophil chemotaxis (leading to recurrent infections).


phakomatosis pigmentokeratotica

description: Phakomatosis pigmentokeratotica (PPK) is a very rare epidermal nevus disorder characterized by the association of speckled lentiginous nevi with epidermal sebaceous nevi, and extracutaneous anomalies.


hereditary elliptocytosis

description: Hereditary elliptocytosis (HE) is a rare clinically and genetically heterogeneous disorder of the red cell membrane characterized by manifestations ranging from mild to severe transfusion-dependent hemolytic anemia but with the majority of patients being asymptomatic.


description: Phosphoenolpyruvate carboxykinase (PEPCK) deficiency is a gluconeogenesis disorder that results from impairment in the enzyme PEPCK, and comprising cytosolic (PEPCK1) and mitochondrial (PEPCK2) forms of enzyme deficiency. Onset of symptoms is neonatal or a few months after birth and includes hypoglycemia associated with acute episodes of severe lactic acidosis, progressive neurological deterioration, severe liver failure, renal tubular acidosis and Fanconi syndrome. Patients also present progressive multisystem damage with failure to thrive, muscular weakness and hypotonia, developmental delay with seizures, spasticity, lethargy, microcephaly and cardiomyopathy. To date, there is no conclusive evidence of the existence of an isolated form of this disorder.


pili torti-onychodysplasia syndrome

description: Pili torti-onychodysplasia is a form of ectodermal dysplasia characterized by dystrophy of the distal part of the nails and trichodysplasia. It has been described in only one family. Transmission is autosomal recessive.


hypocalcemic rickets

description: Hypocalcemic rickets is a group of genetic diseases characterized by hypocalcemia and rickets. It comprises hypocalcemic vitamin D dependent rickets (VDDR-I) and hypocalcemic vitamin D resistant rickets (HVDRR).


name: autosomal recessive hypophosphatemic rickets

description: Autosomal recessive hypophosphatemic rickets (ARHR) is a hereditary renal phosphate-wasting disorder characterized by hypophosphatemia, rickets and/or osteomalacia and slow growth.


name: early-onset epileptic encephalopathy and intellectual disability due to GRIN2A mutation

description: Early-onset epileptic encephalopathy and intellectual disability due to GRIN2A mutation is a rare intellectual disability and epilepsy syndrome characterized by global developmental delay and mild to profound intellectual disability, multiple types of usually intractable focal and generalized seizures with variable abnormal EEG findings, and bilateral progressive parenchymal volume loss and thin corpus callosum on brain MRI.


name: infective dermatitis associated with HTLV-1

description: A rare and severe chronic disease characterized by recurrent chronic eczema (with erythematous, scaly and crusted lesions) mainly affecting seborrheic areas (e.g. scalp, forehead, eyelids, paranasal and periauricular skin, neck, axillae, and groin), a generalized fine papular rash, chronic nasal discharge with crusting of the anterior nares, and non-virulent Staphylococcus aureus or beta-hemolytic Streptococcus infections, thought to be a result of HTLV-1-induced immunosuppression. Lymphadenopathy, anemia, mild to moderate pruritus and increased incidence of other infections (e.g. crusted scabies) have also been reported in some patients. Patients may subsequently develop other HTLV-1 associated conditions such as adult T-cell leukemia/lymphoma and tropical spastic paraparesis.


name: primary non-gestational choriocarcinoma of ovary

description: Primary non-gestational choriocarcinoma of ovary is a rare ovarian germ cell malignant tumor, arising from primordial germ cells, usually presenting with nausea, vomiting, abdominal pain, menstrual irregularities, and characterized by fast growth pattern, metastasis to lung, liver and brain and production of human chorionic gonadotrophin (hCG). It is apparently chemoresistant and has a worse prognosis than gestational choriocarcinoma and hence should be distinguished from the latter by DNA polymorphism.


name: non-central nervous system-localized embryonal carcinoma


familial vesicoureteral reflux

description: Familial vesicoureteral reflux is a rare, non-syndromic urogenital tract malformation characterized by the familial occurrence of retrograde flow of urine from the bladder into the ureter and sometimes the kidneys. Patients may be asymptomatic or may present with recurrent, sometimes febrile, urinary tract infections that, in case of acute pyelonephritis, may lead to serious complications (renal scarring, hypertension, renal failure). Spontaneous resolution of the disorder is possible.


Pilotto syndrome

description: Pilotto syndrome is a rare genetic multiple developmental anomalies syndrome, that is characterized by craniofacial anomalies (microcephaly, brachycephaly, craniosynostosis, facial asymmetry, cleft lip, cleft palate, dysmorphic facial features, ear lobe malformations, low hair line), congenital heart defects, hypogenitalism and/or hypogonadism, intellectual disability, scoliosis or kyphoscoliosis, short hypoplastic ribs, failure to thrive, growth delay, short stature and/or micromelia. There have been no further descriptions in the literature since 1975.


name: pyoderma gangrenosum-acne-suppurative hidradenitis syndrome


12q15q21.1 microdeletion syndrome

description: 12q15q21.1 microdeletion syndrome is a rare chromosomal anomaly syndrome resulting from a partial deletion of the long arm of chromosome 12, with a highly variable phenotype, typically characterized by developmental delay, learning disability, intra-uterine and postnatal growth retardation, and mild facial dysmorphism that changes with age. Nasal speech and hypothyroidism are also associated.


microtriplication 11q24.1

description: Microtriplication 11q24.1 is an extremely rare partial autosomal tetrasomy, resulting from a partial triplication of the long arm of chromosome 11, characterized by intellectual disability (with severe verbal impairment), short stature with small extremities, keratoconus and distinctive facial features (round, course face, upward slanting palpebral fissures, mild synophris, large nose with thick ala nasi and triangular tip, large mouth with broad lips, short and smooth philtrum, large protruded chin, ears with adherent lobules). Additionally, patients are overweight and present hypercholesterolemia.


name: inherited isolated adrenal insufficiency due to partial CYP11A1 deficiency

description: Inherited isolated adrenal insufficiency due to partial CYP11A1 deficiency is a rare, genetic, chronic, primary adrenal insufficiency disorder, due to partial loss-of-function CYP11A1 mutations, characterized by early-onset adrenal insufficiency without associated abnormal external male genitalia. Patients present with signs of adrenal crisis, including electrolite abnormalities, severe weakness, recurrent vomiting and seizures. Ultrasound reveals absent (or very small) adrenal glands.


name: fatal multiple mitochondrial dysfunctions syndrome

description: Multiple mitochondrial dysfunctions syndrome describes a group of rare inborn errors of energy metabolism due to defects in mitochondrial [4Fe-4S] protein assembly. Patients present with a neonatal/infancy onset of metabolic lactic acidosis (that may be associated with hyperglycinemia and other abnormal metabolic testing results), muscular hypotonia, absence of psychomotor development or developmental regression, as well as abnormal neuroimaging findings (including leukodystrophy, brain developmental defects, white matter abnormalities, cerebral atrophy), and other variable clinical features (e.g., optic atrophy, cardiomyopathy, pulmonary hypertension, seizures, and dysmorphic features). Early fatal outcome is usual.


exfoliative ichthyosis

description: Exfoliative ichthyosis is an inherited, non-syndromic, congenital ichthyosis characterized by the infancy-onset of palmoplantar peeling of the skin (aggravated by exposure to water and by occlusion) associated with dry, scaly skin over most of the body. Pruritus and hypohidrosis may also be associated. Well-demarcated areas of denuded skin appear in moist and traumatized regions and skin biopsies reveal reduced cell-cell adhesion in the basal and suprabasal layers, prominent intercellular edema, numerous aggregates of keratin filaments in basal keratinocytes, attenuated cornified cell envelopes, and epidermal barrier impairment.


juvenile nasopharyngeal angiofibroma

description: Juvenile nasopharyngeal angiofibroma (JNA) is a rare and benign but locally aggressive fibrovascular tumor arising from the posterolateral wall of the nasopharynx, which affects mainly young and adolescent males (onset usually occurring between 7-19 years of age) and that presents as a mass in the nasopharynx and nasal cavity, leading to manifestations such as nasal obstruction, epistaxis, profound facial swelling, proptosis or diplopia. Although slowly progressive, it has a high rate of recurrence and sometimes invades adjacent structures.


name: Epstein-Barr virus-associated malignant lymphoproliferative disorder

description: A lymphoproliferative disorder associated with Epstein-Barr virus. This category includes, but is not limited to, Burkitt lymphoma, classic Hodgkin lymphoma, and lymphomas arising in immunocompromised individuals.


name: Epstein-Barr virus-associated mesenchymal tumor


description: Epstein-Barr virus-positive diffuse large B-cell lymphoma of the elderly is a rare form of diffuse large B-cell lymphoma occurring most commonly in patients over the age of 50 (usually between 70-75 years of age), without overt immunodeficiency, and presenting with nodal and extranodal involvement (in sites such as the stomach, lung, skin and pancreas) and B symptoms (fever, night sweats, weight loss). The tumor is characterized by an aggressive course and a short survival rate.


plasmablastic lymphoma

description: An aggressive diffuse large B-cell lymphoma frequently arising in the setting of HIV infection and characterized by the presence of large neoplastic cells resembling B-immunoblasts which have the immunophenotypic profile of plasma cells. Sites of involvement include the oral cavity, sinonasal cavity, skin, soft tissues, gastrointestinal tract, and bone.


lymphoepithelial-like carcinoma

description: Lymphoepithelial-like carcinoma is a rare, malignant epithelial tumor, composed of undifferentiated epithelial cells with dense lymphoid stroma, mimicking lymphoepithelioma. It often shows association with Epstein-Barr virus infection and can develop in various organs, such as the nasopharynx, stomach, skin, breast and lungs, among others. The presenting symptoms, as well as the radiologic features, are usually nonspecific and depend on the affected site and organ.


myopericytoma

description: A usually slow growing, subcutaneous nodular neoplasm arising from myopericytes. It is composed of myoid cells arranged in a perivascular growth pattern. The vast majority of cases have a benign clinical course.


name: inborn disorder of tryptophan metabolism

description: An inherited metabolic disease that is has its basis in the disruption of tryptophan metabolic process.


name: inborn disorder of lysine and hydroxylysine metabolism


neonatal glycine encephalopathy

description: Neonatal glycine encephalopathy is a frequent, usually severe form of glycine encephalopathy (GE) characterized by coma, apnea, hypotonia, seizure and myoclonic jerks in the neonatal period, and subsequent developmental delay.


infantile glycine encephalopathy

description: Infantile glycine encephalopathy is a mild to severe form of glycine encephalopathy (GE), characterized by early hypotonia, developmental delay and seizures.


inborn disorder of proline metabolism

description: An inherited metabolic disease that is has its basis in the disruption of proline metabolic process.


inborn disorder of ornithine metabolism

description: An inherited metabolic disease that is has its basis in the disruption of ornithine metabolic process.


3-methylglutaconic aciduria

description: A group of five inherited disorders caused by mutations in the AUH, DNAJC19, OPA3, and TAZ genes. The disorders are characterized by impairment in the function of mitochondria, resulting in the accumulation and excretion of 3-methylglutaconic acid, and the presence of 3-methylglutaric acid in the urine.


name: vitamin B12-unresponsive methylmalonic acidemia type mut0

description: Vitamin B12-unresponsive methylmalonic acidemia type mut0 is an inborn error of metabolism characterized by recurrent ketoacidotic comas or transient vomiting, dehydration, hypotonia and intellectual deficit, which does not respond to administration of vitamin B12.


congenital rubella syndrome

description: An infectious embryofetopathy that may present in an infant as a result of maternal infection and subsequent fetal infection with rubella virus. CRS can lead to deafness, cataract, and variety of other permanent manifestations including cardiac and neurological defects.


neuralgic amyotrophy

description: Neuralgic amyotrophy (NA) is an uncommon disorder of the peripheral nervous system characterized by the sudden onset of extreme pain in the upper extremity followed by rapid multifocal motor weakness and atrophy and a slow recovery in months to years. NA includes both an idiopathic (INA, also known as Parsonage-Turner syndrome) and hereditary (HNA) form.


name: idiopathic chronic eosinophilic pneumonia

description: A very rare, severe, interstitial lung disease of insidious onset with subacute or chronic non-specific respiratory manifestations (dyspnea, cough, wheezing) often associated with systemic manifestations (fatigue, malaise, weight loss).


POEMS syndrome

description: POEMS syndrome is a paraneoplastic syndrome characterized by polyradiculoneuropathy (P), organomegaly (O), endocrinopathy (E), clonal plasma cell disorder (M), and skin changes (S). Other features include papilledema, extravascular volume overload, sclerotic bone lesions, thrombocytosis/erythrocytosis, and elevated VEGF levels.


name: hereditary acrokeratotic poikiloderma, Weary type


description: Hereditary paraganglioma-pheochromocytomas (PGL/PCC) are rare neuroendocrine tumors represented by paragangliomas (occurring in any paraganglia from the skull base to the pelvic floor) and pheochromocytomas (adrenal medullary paragangliomas).


congenital varicella syndrome

description: Fetal varicella syndrome (CVS) is an acquired developmental anomaly syndrome characterized by skin, neurological, ocular, limbs and growth defects secondary to maternal Varicella-Zoster Virus (VZV) infection.


poliomyelitis

description: An acute infectious disorder that affects the nervous system. It is caused by the poliovirus. The virus spreads by direct contact, and can be prevented by prophylaxis with the polio vaccine.


congenital enterovirus infection

description: Congenital viral infections with enteroviruses (EV) including coxsackie viruses and ECHO viruses is an infectious embryofetopathy that have been reported to cause spontaneous abortion, stillbirth, fetal malformations and acute systemic illness in the newborn.


reactive arthritis

description: Reactive arthritis (ReA) is an autoimmune disorder belonging to the group of seronegative spondyloarthropathies and is characterized by the classic triad of arthritis, urethritis and conjunctivitis.


name: preaxial polydactyly-colobomata-intellectual disability syndrome

description: Preaxial polydactyly-colobomata-intellectual disability syndrome is characterized by growth retardation, intellectual deficit, preaxial polydactyly and colobomatous anomalies. It has been described in one pair of sibs (brother and sister). The mode of transmission is thought to be autosomal recessive.


name: polyneuropathy-intellectual disability-acromicria-premature menopause syndrome

description: Polyneuropathy-intellectual disability-acromicria-premature menopause syndrome is a rare genetic syndromic intellectual disability characterized by intellectual disability, polyneuropathy, short stature and short limbs, brachydactyly, and premature ovarian insufficiency. Only one familial case with three affected females was described and there have been no further descriptions in the literature since 1971.


juvenile polyposis syndrome

description: Juvenile gastrointestinal polyposis (JIP) is a rare condition characterized by the presence of juvenile hamartomatous polyps in the gastrointestinal (GI) tract.


name: congenital herpes simplex virus infection

description: Congenital herpes virus infection is a group of anomalies that an infant may present as a result of maternal infection and subsequent fetal infection with herpes virus. This virus causes recurrent cutaneous infections in adults, often involving the lips or the genitalia. Herpes infections in other organs, such as the liver or central nervous system, are less frequent.


name: familial clubfoot due to 5q31 microdeletion


name: familial clubfoot due to PITX1 point mutation


name: acute generalized exanthematous pustulosis

description: A widespread acute rash characterized by fever and multiple small pustules on a reddish background.


name: malignant migrating partial seizures of infancy

description: A very rare severe form of epilepsy with poor prognosis that usually begins within a few weeks of birth. The seizure activity can appear in multiple locations in the brain or migrate from one region to another during an episode. It results in severe developmental delay.


pleomorphic rhabdomyosarcoma

description: An aggressive malignant mesenchymal neoplasm with skeletal muscle differentiation, occurring in adults and rarely in children. The tumor is characterized by the presence of bizarre round, spindle, and polygonal cells. Clinical presentation includes a rapidly enlarging painful mass usually of the lower extremities.


epithelioid sarcoma

description: An aggressive malignant neoplasm of uncertain differentiation, characterized by the presence of epithelioid cells forming nodular patterns. The nodules often undergo central necrosis, resulting in a pseudogranulomatous growth pattern. It usually occurs in young adults. The most common sites of involvement are the extremities (distal-type epithelioid sarcoma), and less frequently the pelvis, perineum, and genital organs (proximal-type epithelioid sarcoma).


celiac trunk compression syndrome

description: A rare disease caused by compression of the celiac axis by an abnormally shaped arcuate ligament (the part of the diaphragm in which both pillars join in the midline around the aorta). Patients have recurrent abdominal pain, anorexia and weight loss. The pain is epigastric, and diarrhea or constipation may be present as well. Onset of pain will usually, although not always, be after food intake, and may be associated with nausea and emesis. Other symptoms may include lassitude, exercise intolerance and vomiting. Occasionally, a patient may show an abdominal murmur upon auscultation.


description: Tetrahydrobiopterin-responsive hyperphenylalaninemia/ phenylketonuria (BH4-responsive hyperphenylalaninemia/ phenylketonuria) is a form of phenylketonuria (PKU), an inborn error of amino acid metabolism, characterized by mild to moderate symptoms of PKU including impaired cognitive function, seizures, and behavioral and developmental disorders, and a marked reduction and normalization of elevated phenylalanine concentrations after oral loading with tetrahydrobiopterin (BH4; sapropterin dihydrochloride), an essential cofactor of phenylalanine hydroxylase.


Grayson-Wilbrandt corneal dystrophy

description: Grayson-Wilbrandt corneal dystrophy (GWCD) is an extremely rare form of corneal dystrophy characterized by variable patterns of opacification in the Bowman layer of the cornea which extend anteriorly into the epithelium with decreased to normal visual acuity.


pre-descemet corneal dystrophy

description: Pre-Descemet corneal dystrophy (PDCD) is a rare form of stromal corneal dystrophy characterized by focal, fine, gray opacities in the deep stroma immediately anterior to the Descemet membrane, with no effect on vision.


name: blepharophimosis - intellectual disability syndrome


ketamine-induced biliary dilatation

description: Ketamine-induced biliary dilatation is an acquired biliary tract disease caused by the abusive consumption of ketamine, which results in the fusiform dilatation of the common bile ducts (CBD) without obstructive lesions or dilatation of the intrahepatic biliary ducts. Possible manifestations of the underlying cholangiopathy include epigastric pain and impaired liver function. Severity of CBD dilatation appears to correlate with the duration of ketamine consumption and the condition has been reported to be reversible in abstinent patients.


fixed pigmented erythema

description: Round areas of red-purple reaction in the skin that result after drug exposure; these recur in the same location when the medication is readministered.


3MC syndrome

description: 3MC syndrome describes a rare developmental disorder, that unifies the overlapping autosomal recessive disorders previously known as Carnevale, Mingarelli, Malpuech and Michels syndromes, characterized by a spectrum of developmental anomalies that include distinctive facial dysmorphism (i.e. hypertelorism, blepharophimosis, blepharoptosis, highly arched eyebrows), cleft lip and/or palate, craniosynostosis, learning disability, radioulnar synostosis and genital and vesicorenal anomalies. Less common features reported include anterior chamber defects, cardiac anomalies (e.g. ventricular septal defect), caudal appendage, umbilical hernia/omphalocele and diastasis recti.


name: frontotemporal dementia, right temporal atrophy variant

description: Right temporal lobar atrophy (RTLA) is an anatomic variant of frontotemporal dementia (FTD), characterized by behavioral dysfunction, personality changes, episodic memory loss, and prosopagnosia; attributable to an asymmetrical predominantly right-sided, frontotemporal atrophy.


name: hypoplastic pancreas-intestinal atresia-hypoplastic gallbalder syndrome

description: Hypoplastic pancreas-intestinal atresia-hypoplastic gallbladder syndrome is a rare, potentially fatal, genetic, visceral malformation syndrome characterized by neonatal diabetes, hypoplastic or annular pancreas, duodenal and jejunal atresia, as well as gallbladder aplasia or hypoplasia. Patients typically present intrauterine growth restriction, failure to thrive, malnutrition, intestinal malrotation, malabsorption, conjugated hyperbilirubinemia, acholia and infections. Cardiac anomalies may also be associated.


name: familial isolated arrhythmogenic ventricular dysplasia, left dominant form


name: familial isolated arrhythmogenic ventricular dysplasia, biventricular form


name: familial isolated arrhythmogenic ventricular dysplasia, right dominant form


distal Xq28 microduplication syndrome

description: Distal Xq28 microduplication syndrome is a rare, hereditary, syndromic intellectual disability characterized by cognitive impairment, behavioral and psychiatric problems, recurrent infections, atopic diseases, and distinctive facial features in males. Females are clinically asymptomatic or mildly affected, presenting mild learning difficulties and facial dysmorphism.


1p21.3 microdeletion syndrome

description: 1p21.3 microdeletion syndrome is an extremely rare chromosomal anomaly characterized by severe speech and language delay, intellectual deficiency, autism spectrum disorder.


name: hypogonadotropic hypogonadism-severe microcephaly-sensorineural hearing loss-dysmorphism syndrome


name: deficiency in anterior pituitary function - variable immunodeficiency syndrome


name: rapid-onset childhood obesity-hypothalamic dysfunction-hypoventilation-autonomic dysregulation syndrome

description: A very rare disorder that appears after the first year and a half of life in previously healthy children. It is characterized by rapid-onset weight gain, hypothalamic dysfunction, breathing abnormalities, and autonomic system dysregulation. The hypothalamic dysfunction manifestations include inability to maintain normal water balance, high prolactin levels, low thyroid, low cortisol, and early or late puberty. The breathing abnormalities include sleep apnea and alveolar hypoventilation, requiring ventilation support. The autonomic system dysregulation includes eye abnormalities, intestinal abnormalities, temperature dysregulation, and low heart rhythm. This disorder requires early recognition because it may lead to cardiorespiratory arrest. Up to 40% of the patients develop tumors of neural crest origin.


fetal cytomegalovirus syndrome

description: An infection with the Cytomegalovirus that is present from birth.


porencephaly

description: Porencephaly is characterized by a circumscribed intracerebral cavity of variable size that may be bordered by abnormal polymicrogyric gray matter. In extreme cases, this cavity may result in a communication between the pial surface and the ventricle; this is termed schizencephaly.


name: neonatal inflammatory skin and bowel disease

description: Neonatal inflammatory skin and bowel disease is a rare, life-threatening, autoinflammatory syndrome with immune deficiency disorder characterized by early-onset, life-long inflammation, affecting the skin and bowel, associated with recurrent infections. Patients present perioral and perianal psoriasiform erythema and papular eruption with pustules, failure to thrive associated with chronic malabsorptive diarrhea, intercurrent gastrointestinal infections and feeding troubles, as well as absent, short or broken hair and trichomegaly. Recurrent cutaneous and pulmonary infections lead to recurrent blepharitis, otitis externa and bronchiolitis.


postpoliomyelitis syndrome

description: Postpoliomyelitis syndrome (PPS) is a neurologic disorder characterized by the development of new neuromuscular symptoms such as progressive muscular weakness or abnormal muscle fatigability occurring in survivors of the acute paralytic form of poliomyelitis, 15-40 years after recovery from the disease, and that is unexplained by other medical causes. Other manifestations that can occur gradually include generalized fatigue, muscle atrophy, muscle and joint pain, intolerance to cold, and difficulties sleeping, swallowing or breathing.


renal-hepatic-pancreatic dysplasia

description: A rare, genetic, developmental defect during embryogenesis syndrome characterized by the triad of pancreatic fibrosis (and cysts, with a reduction of parenchymal tissue), renal dysplasia (with peripheral cortical cysts, primitive collecting ducts, glomerular cysts and metaplastic cartilage) and hepatic dysgenesis (enlarged portal areas containing numerous elongated binary profiles with a tendency to perilobular fibrosis). Situs abnormalities, skeletal anomalies and anencephaly have also been associated. Patients that survive the neonatal period present renal insufficiency, chronic jaundice and insulin-dependant diabetes.


chronic intestinal failure

description: Chronic intestinal failure (CIF) is a chronic type of intestinal failure characterized by a nonfunctioning small bowel (that may be reversible or irreversal) where the body is unable to maintain energy and nutritional needs through absorption of food or nutrients via the intestinal tract (despite being metabolically stable) and which therefore necessitates long-term parenteral feeding. CIF may be the result of congenital digestive diseases (such as gastroschisis, atresia of small intestine), short bowel syndrome, intra-abdominal or pelvic cancer, or progressive and devastating gastrointestinal or systemic benign diseases (such as Crohn disease).


non-syndromic amelia

description: A congenital malformation characterized by the complete absence of all limbs.


preaxial polydactyly of fingers

description: Preaxial polydactyly of fingers is a limb malformation syndrome characterized by the attachment of a superfluous digit on the first digit. Four types have been defined: Type I (PPD1 or biphalangeal thumb polydactyly) which shows duplication of one or more skeletal components of a biphalangeal thumb; type II (PPD2 or polydactyly of a triphalangeal thumb) which involves the presence of a usually opposable triphalangeal thumb with or without additional duplication of thumb; type III (PPD3 or polydactyly of an index finger) where the thumb is replaced by one or two triphalangeal digits with dermatoglyphic pattern specific for the index finger; and type IV (PPD4 or polysyndactyly) which shows variably mild degrees of thumb duplication and variable syndactyly between 3rd and 4th fingers. Among the four types, PPD1 is the most frequent form. Preaxial polydactyly of fingers is caused by disruptions to the developmental patterning of the limb along the anterior-posterior axis that lead to changes in digit number and identity.


postaxial polydactyly of fingers

description: Supernumerary digits located at the ulnar side of the hand (that is, on the side with the fifth finger).


popliteal pterygium syndrome

description: A rare, autosomal dominant inherited syndrome caused by mutations in the IRF6 gene. It is characterized by the presence of cleft palate, cleft lip, pits in the lower lip, web behind the knee (popliteal pterygium), syndactyly, cryptorchidism, scrotal malformation, and hypoplasia of the labia majora.


lethal congenital contracture syndrome

description: A syndrome characterized by congenital nonprogressive joint contractures. The contractures can involve the upper or lower limbs and/or the vertebral column, leading to various degrees of flexion or extension limitations evident at birth.


amelia of upper limb

description: A non-syndromic amelia that involves the forelimb.


amelia of lower limb

description: A non-syndromic amelia that involves the hindlimb.


tetra-amelia

description: Amelia of all four limbs.


humeral agenesis/hypoplasia

description: Humeral agenesis/hypoplasia is a rare, non-syndromic limb reduction defect characterized by the unilateral or bilateral presence of a short arm with completely absent or underdeveloped humerus, frequently associated with ulnar and/or radial malformations. Patients may present with the appearance of the forearm directly attached to the shoulder, no articulation at the shoulder joint, impossible passive extension of the arm beyond the mid-axillary line, no elbow joints, bowing of the radius, a short ulna and/or ulnar/radial deviation of the hand at the wrist.


name: congenital absence of upper arm and forearm with hand present

description: A congenital malformation in which the upper portion of a limb is either shortened or absent.


name: congenital absence of thigh and lower leg with foot present


name: congenital absence of both forearm and hand

description: Congenital absence of both forearm and hand is a rare developmental defect during embryogenesis characterized by unilateral or bilateral arrest of proximal to distal development of the upper limb, leading to a transverse deficiency with absence of the forearm, wrist and hand. A short below-the-elbow amputation is most commonly observed and the residual limb is usually well cushioned, with rudimentary nubbins or dumpling possibly found on the end.


name: congenital absence of both lower leg and foot


acheiria

description: The total absence of the hand, with no bony elements distal to the radius or ulna.


apodia

description: The total absence of the foot, with no bony elements distal to the tibia or fibula.


split hand

description: Split hand is a rare, non-syndromic limb reduction defect, clinically and genetically heterogeneous, characterized by bilateral or unilateral underdevelopment or absence of the central rays of the autopod, with absence of all or just some of the central phalanges and at least part of the associated metacarpal bones, yielding a cleft appearance of the hand. It is frequently associated with syndactyly and aplasia/hypoplasia of remaining digits and metacarpal bones. No other dysmorphic features are observed and development is appropriate for age.


split foot

description: A condition in which middle parts of the foot (toes and metatarsals) are missing giving a cleft appearance. The severity is very variable ranging from slightly hypoplastic 3rd toe over absent 2nd or 3rd toes as far as oligo- or monodactyl feet.


non-syndromic brachydactyly of fingers

description: A non-syndromic brachydactyly that involves the manus.


non-syndromic brachydactyly of toes

description: A non-syndromic brachydactyly that involves the pes.


fetal parvovirus syndrome

description: Foetal parvovirus syndrome is a foetopathy likely to occur when a pregnant woman is infected by parvovirus B19. In adults, the virus causes a butterfly erythema infectiosum (also called Fifth Disease; 'slapped cheek disease') and flu-like symptoms with symmetric polyarthralgias, which usually do not warrant prenatal diagnosis.


description: Triphalangeal thumb-polysyndactyly syndrome (TPT-PS) is a hand-foot malformation characterized by triphalangeal thumbs and pre- and postaxial polydactyly, isolated syndactyly or complex polysyndactyly.


hyperphalangy

description: Hyperphalangy is a congenital, non-syndromic limb malformation characterized by the presence of an accessory phalanx between metacarpal/metatarsal and proximal phalanx, or between any two other phalanges of a digit, excluding the thumb. Hypherphalangy is almost always bilateral and patients present no more than five digits and no other skeletal anomalies.


central polydactyly of fingers

description: The presence of a supernumerary finger or toe (not a thumb or hallux) involving the third or fourth metacarpal/tarsal with associated osseous syndactyly.


syndactyly type 6

description: Syndactyly type 6 is a rare, genetic, non-syndromic, congenital limb malformation characterized by unilateral fusion of second to fifth fingers, amalgamation of distal phalanges in a knot-like structure, and second- and third-toe fusion. Some individuals present only with webbing between second and third toes, without involvement of fingers.


name: familial isolated clinodactyly of fingers

description: Familial isolated clinodactyly of fingers is a rare, genetic, non-syndromic, congenital limb malformation characterized by angulation of a digit in the radio-ulnar (coronal) plane, away from the axis of joint flexion-extension, in several members of a single family with no other associated manifestations. Deviation is usually bilateral and commonly involves the fifth finger. Affected digits present trapezoidal or delta-shaped phalanges on imaging.


congenital pseudoarthrosis of the tibia

description: A condition characterized by non-union of the tibia, which is present at birth. It is usually associated with neurofibromatosis type 1.


name: congenital pseudoarthrosis of the fibula


name: congenital pseudoarthrosis of the radius


tibio-fibular synostosis

description: Tibio-fibular synostosis is a rare, non-syndromic limb malformation characterized by fusion of the proximal or distal tibial and fibular metaphysis and/or diaphysis, frequently associated with distal positioning of the proximal tibiofibular joint, leg length discrepancy, bowing of the fibula, and valgus deformity of the knee.


macrodactyly of fingers

description: A type of Macrodactyly affecting one or several fingers.


macrodactyly of toes

description: A type of Macrodactyly affecting one or several toes.


lower limb hypertrophy

description: Lower limb hypertrophy is a rare, genetic, non-syndromic developmental defect during embryogenesis characterized by uni- or bilateral overgrowth of lower limbs involving bones and/or soft tissues and resulting in an abnormal increase in leg length and/or width. Hypertrophy presents either as a proportionate overgrowth of entire limb or involves only the proximal or distal parts of it. Phenotype ranges from mild hypertrophy without functional disability to massively hypertrophied limb with knee flexion and ankle equinus contractures and macrodystrophia lipomatosa. Patients may also present vascular abnormalities (e.g. cutaneous angiomas, varicose veins) and myalgia.


name: congenital absence of thigh and lower leg with foot present, unilateral


name: congenital absence of thigh and lower leg with foot present, bilateral


name: congenital absence of both forearm and hand, unilateral

description: Congenital absence of both forearm and hand, unilateral is a rare developmental defect during embryogenesis characterized by a unilateral, transverse absence of the radius and ulna (of varying terminal lengths), as well as all the elements composing the hand. Left or right side may be involved.


name: congenital absence of both forearm and hand, bilateral

description: Congenital absence of both forearm and hand, bilateral is a rare developmental defect during embryogenesis characterized by a bilateral, transverse absence of the radius and ulna (of varying terminal lengths), as well as all the elements composing the hand.


name: congenital absence of both lower leg and foot, unilateral


name: congenital absence of both lower leg and foot, bilateral


split hand, unilateral

description: Split hand, unilateral is a rare, non-syndromic limb reduction defect, clinically and genetically heterogeneous, characterized by unilateral underdevelopment or absence of the central rays of the autopod, with absence of all, or just some, of the central phalanges and at least part of the associated metacarpal bones, yielding a cleft appearance of the hand. It is frequently associated with syndactyly and aplasia/hypoplasia of remaining digits and metacarpal bones. No other dysmorphic features are observed and development is appropriate for age.


split hand, bilateral

description: Split hand, bilateral is a rare, non-syndromic limb reduction defect, clinically and genetically heterogeneous, characterized by bilateral underdevelopment or absence of the central rays of the autopod, with absence of all, or just some, of the central phalanges and at least part of the associated metacarpal bones, yielding a cleft appearance of the hand. It is frequently associated with syndactyly and aplasia/hypoplasia of remaining digits and metacarpal bones. No other dysmorphic features are observed and development is appropriate for age.


name: symbrachydactyly of hand and foot, unilateral


name: symbrachydactyly of hand and foot, bilateral


name: polydactyly of a biphalangeal thumb, unilateral


name: polydactyly of a biphalangeal thumb, bilateral


name: polydactyly of a triphalangeal thumb, unilateral


name: polydactyly of a triphalangeal thumb, bilateral


name: polydactyly of an index finger, unilateral


name: polydactyly of an index finger, bilateral


name: postaxial polydactyly type A, unilateral


name: postaxial polydactyly type B, unilateral


name: central polydactyly of fingers, unilateral


name: central polydactyly of fingers, bilateral


name: Preaxial polydactyly of toes, unilateral


name: congenital elbow dislocation, unilateral


congenital genu recurvatum

description: An abnormal alignment of the knee backwards that is due to a deformity in the knee joint.


name: congenital patella dislocation, unilateral


name: congenital patella dislocation, bilateral


Prata-Liberal-Goncalves syndrome

description: Acrodysplasia scoliosis is a rare, genetic dysostosis disorder characterized by brachydactyly and other finger/toe anomalies (short and/or wide metacarpals, abnormal or absent metatarsals, broad halluces), carpal synostosis, fused cervical vertebrae, scoliosis and spina bifida occulta. There have been no further descriptions in the literature since 1984.


de Barsy syndrome

description: A rare autosomal recessive genetic disorder characterized by facial dysmorphism (down-slanting palpebral fissures, a broad flat nasal bridge and a small mouth) with a progeroid appearance, large and late-closing fontanel, cutis laxa (CL), joint hyperlaxity, athetoid movements and hyperreflexia, pre- and postnatal growth retardation, intellectual deficit and developmental delay, and corneal clouding and cataract.


leukocyte adhesion deficiency

description: Leukocyte adhesion deficiency (LAD) is a primary immunodeficiency characterized by defects in the leukocyte adhesion process, marked leukocytosis and recurrent infections.


Proteus-like syndrome

description: Proteus-like syndrome describes patients who do not meet the diagnostic criteria for Proteus syndrome but who share a multitude of characteristic clinical features of the disease.


tick-borne encephalitis

description: Tick-borne encephalitis is caused by an arbovirus of the Flaviviridae family (tick-borne encephalitis virus, TBEV), transmitted principally by the bite of the Ixodes ricinus tick. The symptomology is biphasic, with the initial phase being associated with a flu-like illness and the second phase (occurring in less than 10% of patients) with symptoms of meningitis or, more rarely, meningoencephalitis.


description: 46,XX disorder of sex development-anorectal anomalies syndrome is a rare developmental defect during embryogenesis syndrome characterized by a normal female karyotype, normal ovaries, male or ambiguous genitalia, urinary tract malformations (ranging from bilateral renal agenesis to mild unilateral hydronephrosis), müllerian duct anomalies (e.g. complete absence of the uterus and vagina, bicornuate uterus), and imperforate anus. Additional features may include tracheoesophageal fistula, radial aplasia, and malrotation of the gut.


chronic intestinal pseudoobstruction

description: Chronic intestinal pseudo-obstruction (CIPO) is a rare gastrointestinal motility disorder characterized by recurring episodes resembling mechanical obstruction in the absence of organic, systemic, or metabolic disorders, and without any physical obstruction being detected by X-ray or during surgery. CIPO develops predominantly in children and may be present at birth.


description: A syndrome characterized by the association of gastrointestinal dysmotility, peripheral neuropathy, chronic progressive external ophthalmoplegia and leukoencephalopathy.


46,XX disorder of sex development

description: Conditions affecting individuals with 46,XX karyotype characterized by atypical development of one or more of the following: the gonads, the internal reproductive structures, the external reproductive/genital structures.


spontaneous periodic hypothermia

description: Spontaneous periodic hypothermia (SPH) is a neurological disorder characterized by spontaneous periodic hypothermia and hyperhidrosis in the absence of hypothalamic lesions.


name: disorder of thiamine metabolism and transport


description: Baraitser-Winter syndrome (BWS) is a malformation syndrome, characterized by facial dysmorphism (hypertelorism with ptosis, broad bulbous nose, ridged metopic suture, arched eyebrows, progressive coarsening of the face), ocular coloboma, pachygyria and/or band heterotopias with antero-posterior gradient, progressive joint stiffening, and intellectual deficit of variable severity, often with severe epilepsy. Pachygyria - epilepsy - intellectual disability - dysmorphism (Fryns-Aftimos syndrome (FA)) corresponds to the appearance of BWS in elderly patients.


11p15.4 microduplication syndrome

description: 11p15.4 microduplication syndrome is a rare partial autosomal trisomy/tetrasomy characterized by obesity, global developmental delay and intellectual disability, facial dysmorphism (synophrys, high-arched eyebrows, large posteriorly rotated ears, upturned nose, long smooth philtrum, overbite and high palate), large hands and limb hypotonia. Additional features include seizures and behavioral abnormalities.


pituitary adenocarcinoma

description: A rare adenocarcinoma with poor prognosis, arising from the adenohypophysial cells of the anterior lobe of the pituitary gland or pre-existing adenomas. The majority are hormonally functioning neoplasms, usually producing prolactin or ACTH. The diagnosis is based on the presence of metastases. Syndromes associated with pituitary gland carcinomas include hyperprolactinemia, Cushing disease, and acromegaly.


name: mirror polydactyly-vertebral segmentation-limbs defects syndrome

description: Mirror polydactyly-vertebral segmentation-limbs defects syndrome is characterized by mirror polydactyly, vertebral hypersegmentation and severe congenital limb deficiencies. Duodenal atresia and absent thymus were also reported. So far, it has been described in four unrelated infants identified through a congenital malformation screening program carried out in Spain. The prevalence was estimated at around 1 in 330,000. The etiology is unknown but it was suggested that the syndrome is caused by defective expression of a developmental control gene.


Sagliker syndrome

description: A rare bone disease that arises due to secondary hyperparathyroidism in patients with chronic renal failure receiving dialysis characterized by 'uglifying' the appearance of the face


name: painful orbital and systemic neurofibromas-marfanoid habitus syndrome


onychocytic matricoma

description: Onychocytic matricoma is a rare tumor of the nail that is generally benign. Affected people often experience thickening of the involved portion of the nail. The tumor may be pigmented (melanonychia - a black or brown pigmentation of the normal nail plate) or non-pigmented. The exact underlying cause of onychocytic matricoma is currently unknown. It generally occurs sporadically in people with no family history of the condition. Treatment generally consists of surgical excision.


onychomatricoma

description: A neoplasm involving a UBERON:0002283.


nail tumor

description: A neoplasm involving a nail.


follicular cholangitis and pancreatitis

description: Follicular cholangitis and pancreatitis is a rare pancreatobiliary disease characterized by marked duct-centered lymphoid follicular inflammation that develops in both biliary and pancreatic ductal systems, mainly affecting the hilar bile ducts and the pancreatic head. Patients present with jaundice, abdominal pain, liver dysfunction, pruritus and/or weight loss. Histology shows lymphoplasmacytic infiltration with formation of numerous, large lymphpoid follicles around the affected bile and pancreatic ducts.


carcinoma of the ampulla of vater

description: A carcinoma arising from the ampulla of Vater. The vast majority of cases are adenocarcinomas. Signs and symptoms include jaundice, abdominal pain, anorexia, nausea, vomiting, and weight loss.


name: combined pulmonary fibrosis-emphysema syndrome


juvenile amyotrophic lateral sclerosis

description: Juvenile amyotrophic lateral sclerosis (JALS) is a very rare severe motor neuron disease characterized by progressive upper and lower motor neuron degeneration causing facial spasticity, dysarthria, and gait disorders with onset before 25 years of age.


indolent B-cell non-Hodgkin lymphoma

description: A B-cell non-Hodgkin lymphoma with an indolent clinical course. Representative examples include grade 1 and grade 2 follicular lymphoma, marginal zone lymphoma, and lymphoplasmacytic lymphoma.


aggressive B-cell non-Hodgkin lymphoma

description: A B-cell non-Hodgkin lymphoma with an aggressive clinical course. This category includes B lymphoblastic lymphoma, subtypes of diffuse large B-cell lymphoma, Burkitt lymphoma, grade 3 follicular lymphoma, and mantle cell lymphoma.


name: diffuse large B-cell lymphoma of the central nervous system

description: A diffuse large B-cell lymphoma arising from the central nervous system.


description: T-cell/histiocyte rich large B cell lymphoma (THRLBCL) is a rare variant of diffuse large B-cell lymphoma (DLBCL), mainly affecting middle-aged men and often not being discovered until an advanced disease stage, with involvement of the spleen, liver and bone marrow occurring at a greater frequency than in DLBCL. It is often difficult to diagnose due to its similarity with other lymphoid diseases such as classic Hodgkin lymphoma and nodular lymphocyte-predominant Hodgkin lymphoma and has an aggressive clinical course.


name: primary cutaneous anaplastic large cell lymphoma

description: Primary cutaneous anaplastic large cell lymphoma (C-ALCL) is a rare T-cell non-Hodgkin lymphoma that affects the skin and generally shows no extracutaneous involvement at presentation. It belongs to the spectrum of primary cutaneous CD30+ lymphoproliferative disorders along with lymphomatoid papulosis with which it shares overlapping clinical and histopathologic features.


name: splenic diffuse red pulp small B-cell lymphoma

description: Splenic diffuse red pulp small B-cell lymphoma is a rare, indolent B-cell non-Hodgkin lymphoma characterized by abnormal proliferation of small, monomorphous, basophilic B-lymphocytes, with villous cytoplasm, in the splenic red pulp, bone marrow and peripheral blood. It typically presents in the late clinical stages with splenomegaly and moderate lymphocytosis. Cytopenias are rare and likely associated with hypersplenism.


hairy cell leukemia variant

description: Hairy Cell Leukemia variant (HCL-V) is defined as a rare and indolent form of small, mature, B-cell leukemia characterized by splenomegaly, an elevated white blood cell (WBC) count and hyper-cellular bone marrow. HCL-V is more aggressive and resistant to therapy than classical HCL (HCL-C).


name: diffuse large B-cell lymphoma with chronic inflammation

description: Diffuse large B-cell lymphoma with chronic inflammation is an Epstein-Barr virus-associated malignant lymphoproliferative disorder, developing in a context of long-standing or slow-growing, chronically inflamed lesions, such as chronic pyothorax, metallic implants in bones and joints, chronic osteomyelitis, chronic venous ulcer, or, rarely granulomatous inflammation. The tumor is usually primarily localized, with no involvement of other organs.


description: ALK-positive anaplastic large cell lymphoma (ALK+ ALCL) is a type of ALCL, a rare and aggressive peripheral T-cell non-Hodgkin lymphoma affecting lymph nodes and extranodal sites, which is characterized by the expression of a protein called anaplastic lymphoma kinase (ALK).


description: ALK-negative anaplastic large cell lymphoma (ALK- ALCL) is a type of ALCL, a rare and aggressive peripheral T-cell non-Hodgkin lymphoma affecting lymph nodes and extranodal sites, which is characterized by the lack of expression of a protein called anaplastic lymphoma kinase (ALK).


marginal zone lymphoma

description: A usually indolent mature B-cell lymphoma, arising from the marginal zone of lymphoid tissues. It is characterized by the presence of small to medium sized atypical lymphocytes. It comprises three entities, according to the anatomic sites involved: extranodal marginal zone B-cell lymphoma of mucosa-associated lymphoid tissue, which affects extranodal sites (most often stomach, lung, skin, and ocular adnexa); nodal marginal zone B-cell lymphoma, which affects lymph nodes without evidence of extranodal disease; and splenic marginal zone B-cell lymphoma, which affects the spleen and splenic hilar lymph nodes, bone marrow, and often the peripheral blood.


caudal regression sequence

description: Caudal regression sequence is a rare congenital malformation of the lower spinal segments associated with aplasia or hypoplasia of the sacrum and lumbar spine.


renal tubular dysgenesis

description: Renal tubular dysgenesis is a rare disorder of the fetus characterized by absent or poorly developed proximal tubules of the kidneys, persistent oligohydramnios, leading to Potter sequence (facial dysmorphism with large and flat low-set ears, lung hypoplasia arthrogryposis and limb positioning defects), and skull ossification defects. It can be acquired during fetal development due to drugs taken by the mother or certain disorders (twin-twin transfusion syndrome, TTTS) or inherited in an autosomal recessive manner.


epidermolysis bullosa simplex

description: Epidermolysis bullosa simplex (EBS) is a group of hereditary epidermolysis bullosa (HEB) disorders characterized by skin fragility resulting in intraepidermal blisters and erosions that occur either spontaneously or after physical trauma.


pituitary tumor

description: A benign or malignant neoplasm affecting the pituitary gland. The vast majority are adenomas arising from the anterior lobe of the pituitary gland.


junctional epidermolysis bullosa

description: Junctional epidermolysis bullosa (JEB) is a form of inherited epidermolysis bullosa characterized by involvement of the skin and mucous membranes, and is defined by the formation of blistering lesions between the epidermis and the dermis at the lamina lucida level of the cutaneous basement membrane zone and by healing of lesions with atrophy and/or exuberant granulation tissue formation.


name: intellectual disability-hypotonia-skin hyperpigmentation syndrome


description: X-linked intellectual disability-hypogonadism-ichthyosis-obesity-short stature syndrome is a rare X-linked intellectual disability syndrome characterized by intellectual disability associated with short stature, obesity, primary hypogonadism and an ichthyosiform skin condition. There have been no further descriptions in the literature since 1982.


benign familial infantile epilepsy

description: A genetic epileptic syndrome characterized by the occurrence of afebrile repeated seizures in healthy infants, between the third and eighth month of life.


name: X-linked intellectual disability, Schutz type


acquired adult-onset immunodeficiency

description: A acquired immunodeficiency that occurs in an adult.


name: congenital sucrase-isomaltase deficiency with starch intolerance


name: congenital sucrase-isomaltase deficiency with minimal starch tolerance


name: congenital sucrase-isomaltase deficiency without starch intolerance


name: congenital sucrase-isomaltase deficiency with starch and lactose intolerance


name: congenital sucrase-isomaltase deficiency without sucrose intolerance


PTEN hamartoma tumor syndrome

description: A group of clinically heterogeneous disorders united by a germline PTEN mutation and the involvement of derivatives of all 3 germ cell layers, manifesting with hamartomas, overgrowth and neoplasia. Currently, subsets carrying clinical diagnoses of Cowden syndrome, Bannayan-Riley-Ruvalcaba syndrome, Proteus and Proteus-like syndromes and SOLAMEN syndrome belong to PHTS.


name: familial primary hypomagnesemia with hypercalciuria and nephrocalcinosis

description: Familial primary hypomagnesemia with hypercalciuria and nephrocalcinosis (FHHNC) is a form of familial primary hypomagnesemia (FPH), characterized by renal magnesium (Mg) and calcium (Ca) wasting, nephrocalcinosis, kidney failure and, in some cases, severe ocular impairment. Two subtypes of FHHNC are described: FHHNC with severe ocular involvement (FHHNCOI) and without severe ocular involvement (FHHN).


name: familial primary hypomagnesemia with hypocalcuria


description: Familial primary hypomagnesemia with normocalcuria (FPHN) is a form of familial primary hypomagnesemia (FPH) which is characterized by low magnesium values but normal calcium values in the serum. The disorder consists of three distinct forms which are: autosomal recessive primary hypomagnesemia with normocalcuria and hypocalcemia (ARPHN), familial primary hypomagnesemia with normocalcuria and normocalcemia (FPHNN) and isolated autosomal dominant hypomagnesemia, Glaudemans type.


name: congenital hereditary facial paralysis-variable hearing loss syndrome

description: Congenital hereditary facial paralysis-variable hearing loss syndrome is an extremely rare autosomal recessive disorder characterized by bilateral facial palsy with masked facies, sensorineural hearing loss, dysmorphic features (midfacial retrusion, low-set ears), and strabismus.


name: X-linked complicated spastic paraplegia type 1

description: An X-linked form of L1 syndrome characterized by spastic paraplegia, mild to moderate intellectual disability, normal MRI of the brain.


hemiparkinsonism-hemiatrophy syndrome

description: Hemiparkinsonism-hemiatrophy syndrome is a rare parkinsonian disorder characterized by unilateral body atrophy and slowly progressive, ipsilateral hemiparkinsonian signs (bradykinesia, rigidity, and tremor). Patients typically present with unilateral, action-induced dystonia, in upper or lower limbs, that progresses and becomes bilateral or with tremor which occurs predominantly at rest and progresses to hemiparkinsonism. Scoliosis, scapular winging, raised shoulders, brisk reflexes and extensor plantars are frequently associated.


manganese poisoning

description: Manganese poisoning is associated with chronic inhalation of manganese particles by individuals who work with manganese ore. Clinical features include confusion; hallucinations; and an extrapyramidal syndrome (parkinson disease, secondary) that includes rigidity; dystonia; retropulsion; and tremor. (Adams, Principles of Neurology, 6th ed, p1213)


cyanide-induced parkinsonism

description: Cyanide-induced parkinsonism is a rare parkinsonian syndrome due to intoxication which develops in individuals surviving an acute cyanide intoxication episode or due to chronic exposure to small cyanide doses. It presents several weeks after acute exposure with progressive typical clinical features of parkinsonism including bradykinesia, rigidity, dystonia, hypomimia, hypokinetic dysarthria, postural instability and retropulsion but no resting or postural tremor. Brain MRI reveals bilateral lesions in the pallidum, posterior putamen, substantia nigra, subthalamic nucleus, temporal and occipital cortex, and cerebellum.


name: intellectual disability-microcephaly-phalangeal-facial abnormalities syndrome


Sydenham chorea

description: A neurological disorder characterized by rapid, jerky, irregular, and involuntary movements (chorea), especially of the face and limbs. Additional symptoms may include muscle weakness, slurred speech, headaches, and seizures.


hemidystonia-hemiatrophy syndrome

description: Hemidystonia-hemiatrophy (HD-HA) is a rare dystonia, usually caused by a static cerebral injury occurring at birth or during infancy, that is characterized by a combination of hemidystonia (HD), involving one half of the body, and hemiatrophy (HA) on the same side as the HD.


hyperekplexia

description: A neurologic disorder classically characterized by pronounced startle responses to tactile or acoustic stimuli and hypertonia


diffuse palmoplantar keratoderma

description: Palmoplantar keratoderma that diffusely involves most of the palm and sole and is caused by a genetic abnormality.


name: intellectual disability-short stature-hypertelorism syndrome

description: Intellectual disability-short stature-hypertelorism syndrome is a rare genetic syndromic intellectual disability affecting males characterized by short stature, mild to moderate intellectual deficits, craniofacial dysmorphism (prominent broad 'square' forehead, hypertelorism, depressed nasal bridge, broad nasal tip and anteverted nares) and early hypotonia present only until the age of 2. There have been no further descriptions in the literature since the original article in 1991 and it has been suggested that this condition represents an example of FG syndrome.


punctate palmoplantar keratoderma

description: A palmoplantar keratosis characterized by keratoses with a "raindrop" pattern on the palmoplantar surface, skin lesions which may involve the whole of the palmoplantar surface, or may be more restricted in their distribution.


name: intellectual disability-polydactyly-uncombable hair syndrome

description: Intellectual disability-polydactyly-uncombable hair syndrome is a multiple congenital anomalies/dysmorphic syndrome characterized by intellectual disability, postaxial polydactyly, phalangeal hypoplasia, 2-3 toe syndactyly, uncombable hair and facial dysmorphism (including frontal bossing, hypotelorism, narrow palpebral fissures, nasal bridge and lips, prominent nasal root, large abnormal ears with prominent antihelix, poorly folded helix, underdeveloped lobule and antitragus, and micrognathia evolving into prognatism). Cryptorchidism, conductive hearing loss and progressive thoracic kyphosis were also reported.


name: disorder of beta and omega amino acid metabolism


name: vitamin B12-responsive methylmalonic acidemia, type cblDv2


inborn aminoacylase deficiency

description: An inherited metabolic disease that is has its basis in the disruption of aminoacylase activity.


name: disorder of neutral amino acid transport

description: An inherited metabolic disease that is has its basis in the disruption of neutral amino acid transport.


name: erythrocyte galactose epimerase deficiency


name: generalized galactose epimerase deficiency


name: glycogen storage disease due to acid maltase deficiency, infantile onset

description: Glycogen storage disease due to acid maltase deficiency, infantile onset is the most severe form of glycogen storage disease due to acid maltase deficiency, characterized by cardiomegaly with respiratory distress, muscle weakness and feeding difficulties. It is often fatal.


name: glycogen storage disease due to glycogen branching enzyme deficiency, progressive hepatic form


name: glycogen storage disease due to glycogen branching enzyme deficiency, non progressive hepatic form


name: glycogen storage disease due to glycogen branching enzyme deficiency, fatal perinatal neuromuscular form


name: glycogen storage disease due to glycogen branching enzyme deficiency, congenital neuromuscular form


name: glycogen storage disease due to glycogen branching enzyme deficiency, childhood combined hepatic and myopathic form


name: glycogen storage disease due to glycogen branching enzyme deficiency, childhood neuromuscular form


name: glycogen storage disease due to glycogen branching enzyme deficiency, adult neuromuscular form


familial partial epilepsy

description: An instance of partial epilepsy that is caused by an inherited modification of the individual's genome.


name: congenital pulmonary venous return anomaly

description: Congenital pulmonary venous return anomaly is a cardiac malformation where some or all of the pulmonary veins drain into the right atrium or the systemic veins, with or without the presence of pulmonary venous obstruction, leading to various manifestations such as fatigue, exertional dyspnea, pulmonary arterial hypertension, cyanosis and progressive congestive heart failure. The two main subtypes are congenital partial pulmonary venous return anomaly (PAPVC), where one or a few of the pulmonary veins are anomalous, and congenital total pulmonary venous return anomaly (TAPVC), where all of the pulmonary veins are anomalous.


name: disorder of carbohydrate transmembrane transport and absorption


name: combined pancreatic lipase-colipase deficiency

description: A disorder of lipid absorption and transport characterized by steatorrhea with foul-smelling stools from birth, diminished serum carotene and vitamin E and a combined deficiency of the pancreatic enzymes lipase and colipase. Patients are otherwise healthy and develop normally with no apparent pancreatic disease. There have been no further descriptions in the literature since 1990.


name: disorder of fatty acid oxidation and ketogenesis


name: disorder of carnitine cycle and carnitine transport


gangliosidosis

description: A group of autosomal recessive lysosomal storage disorders marked by the accumulation of gangliosides. They are caused by impaired enzymes or defective cofactors required for normal ganglioside degradation in the lysosomes. Gangliosidoses are classified by the specific ganglioside accumulated in the defective degradation pathway.


GM2 gangliosidosis

description: A group of recessively inherited diseases characterized by the intralysosomal accumulation of G(M2) GANGLIOSIDE in the neuronal cells. Subtypes include mutations of enzymes in the BETA-N-ACETYLHEXOSAMINIDASES system or G(M2) ACTIVATOR PROTEIN leading to disruption of normal degradation of GANGLIOSIDES, a subclass of ACIDIC GLYCOSPHINGOLIPIDS.


Sandhoff disease, adult form

description: A Sandhoff disease that occurs in an adult.


name: Tay-Sachs disease, b variant, infantile form


name: Tay-Sachs disease, b variant, juvenile form


name: Tay-Sachs disease, B variant, adult form


fixed subaortic stenosis

description: Fixed subaortic stenosis (FSS) is a rare heart malformation characterized by the obstruction by membranous or fibromuscular tissue of the left ventricular outflow tract (LVOT) below the aortic valve, that occurs as an isolated lesion or in association with additional cardiac malformations (e.g. ventricular septal defect, patent ductus arteriosus, coarctation of the aorta), that presents in childhood with signs of LVOT obstruction (e.g. dyspnea, chest pain, syncope, palpitations) and that can potentially lead to life-threatening complications (e.g. aortic regurgitation, infective endocarditis). It comprises three anatomical subforms: discrete fixed membranous subaortic stenosis (membranous tissue encircling the LVOT), discrete fibromuscular subaortic stenosis (fibromuscular tissue encircling the LVOT) and tunnel subaortic stenosis (fibromuscular diffuse tunnel-like narrowing of the LVOT), the two latter forms being generally more severe than the membranous form.


name: metachromatic leukodystrophy, late infantile form


name: metachromatic leukodystrophy, adult form


sialidosis

description: Sialidosis is a lysosomal storage disease, belonging to the group of oligosaccharidoses or glycoproteinoses, with a wide clinical spectrum that is divided into two main clinical subtypes: sialidosis type I, the milder, non dysmorphic form of the disease characterized by gait abnormalities, progressive visual loss, bilateral macular cherry red spots and myoclonus, that presents in adolescence or adulthood (second or third decade of life); and sialidosis type II the more severe, early onset form, characterized by a progressive and severe mucopolysaccharidosis-like phenotype with coarse facies, visceromegaly, dysostosis multiplex, and developmental delay. Bilateral macular cherry red spots are also present. Sialidosis type II has been further divided into congenital (with hydrops fetalis), infantile and juvenile presentations.


congenital aortic valve stenosis

description: Aortic valve stenosis that is present at birth.


name: disorder of lysosomal-related organelles


disorder of protein N-glycosylation

description: A disease that has its basis in the disruption of protein N-linked glycosylation.


disorder of protein O-glycosylation

description: A disease that has its basis in the disruption of protein O-linked glycosylation.


atypical Rett syndrome

description: A neurodevelopmental disorder that is diagnosed when a child presents with a Rett-like syndrome but does not fulfill all the diagnostic criteria for typical Rett syndrome (classic/typical RTT).


name: inborn disorder of glycosphingolipid and glycosylphosphatidylinositol anchor glycosylation


name: defect in conserved oligomeric Golgi complex


inborn disorder of porphyrin metabolism

description: An inherited metabolic disease that is has its basis in the disruption of porphyrin-containing compound metabolic process.


inborn disorder of bilirubin metabolism

description: An instance of bilirubin metabolism disease that is caused by an inherited modification of the individual's genome.


name: disorder of metabolite absorption and transport


name: disorder of vitamin and non-protein cofactor absorption and transport


name: disorder of mineral absorption and transport


disorder of copper metabolism

description: An inherited metabolic disease that is has its basis in the disruption of cellular copper ion homeostasis.


name: disorder of iron metabolism and transport


disorder of magnesium transport

description: An inherited metabolic disease that is has its basis in the disruption of magnesium ion transport.


rheumatic fever

description: A post-bacterial multisystem inflammatory disease occurring as a post-infectious, nonsuppurative sequela of untreated streptococcus pyogenes (Group A streptococcus [GAS]) pharyngitis, and mainly occurs in individuals aged 5 to 15 years. The most common presenting signs are fever, migratory polyarthritis and carditis.


reflex epilepsy

description: Reflex epilepsy refers to epilepsies where recurrent seizures are provoked by a clearly defined extrinsic (most commonly) or intrinsic triggering stimuli such as flashing lights (photosensitive epilepsy), startling noises (startle epilepsy), urinating (micturition induced seizures), exposure to hot-water (hot water epilepsy), eating, reading, and thinking, while being associated with an enduring abnormal predisposition to have such seizures (thereby meeting the conceptual definition of epilepsy).


Robinow-like syndrome

description: Robinow-like syndrome is characterized by the association of the clinical features present in Robinow syndrome (short stature, mesomelic brachymelia, macrocephaly, and hypoplastic genitalia), with anterior chamber cleavage anomalies. It has been described in two sisters and is transmitted as an autosomal recessive trait.


Mayer-Rokitansky-Kuster-Hauser syndrome

description: Spectrum of Mullerian duct anomalies characterized by congenital aplasia of the uterus and upper 2/3 of the vagina in otherwise phenotypically normal females. It can be classified as either MRKH syndrome type 1 (corresponding to isolated utero-vaginal aplasia) or MRKH syndrome type 2 (utero-vaginal aplasia associated with other malformations).


hypoalphalipoproteinemia

description: A metabolic disorder characterized by deficiency of high density (alpha) lipoprotein in the blood.


hypobetalipoproteinemia

description: A group of lipoprotein metabolism disorders that are characterized by permanently low levels (below the 5th percentile) of apolipoprotein B and LDL cholesterol.


melioidosis

description: An infection that is caused by Burkholderia pseudomallei, which is found in soil and water; symptoms vary widely, but most commonly include fever, cough, pneumonia, arthralgia, myalgia, and skin ulceration.


nocardiosis

description: Nocardiosis is a local (skin, lung, brain) or disseminated (whole body) acute, subacute, or chronic bacterial infection.


lamellar ichthyosis

description: A keratinization disorder characterized by the presence of large scales all over the body without significant erythroderma.


description: Alpha-N-acetylgalactosaminidase (NAGA) deficiency is a very rare lysosomal storage disease that is clinically and pathologically heterogeneous and is characterized by deficient NAGA activity.


20p13 microdeletion syndrome

description: 20p13 microdeletion syndrome is a rare chromosomal anomaly characterized by developmental delay, mild to moderate intellectual disability, epilepsy, and unspecific dysmorphic signs. High palate, delayed permanent tooth eruption, hypoplastic fingernails, clinodactyly and short fingers have also been reported.


name: developmental and speech delay due to SOX5 deficiency

description: A rare genetic syndrome characterized by mild to severe global developmental delay, intellectual disability and behavioral abnormalities, hypotonia, strabismus, optic nerve hypoplasia and mild facial dysmorphic features (down slanting palpebral fissures, frontal bossing, crowded teeth, auricular abnormalities and prominent philtral ridges). Other associated clinical features may include seizures and skeletal anomalies (kyphosis/scoliosis, pectus deformities).


name: Epstein-Barr virus-associated gastric carcinoma

description: Epstein-Barr virus (EBV)-associated gastric carcinoma (EBVaGC) is a rare form of gastric carcinoma (seen in approximately 10% of cases) with a male predominance, characterized by a latent EBV infection in gastric carcinoma cells, diffuse-type histology, a proximal location (in the body and cardia of the stomach) and a relatively favorable prognosis.


PENS syndrome

description: PENS syndrome is a rare, genetic, neurocutaneous syndrome characterized by the presence of randomly distributed, small, white to yellowish, multiple, rounded or irregular polycyclically-shaped, epidermal keratotic papules and plaques of ''gem-like'' appearance with a rough surface, typically located on the trunk and proximal limbs, associated with variable neurological abnormalities, including psychomotor delay, epilepsy, speech and language impairment and attention deficit-hyperactivity disorder. Clumsiness, dyslexia and oftalmological abnormalities have also been reported.


2q23.1 microduplication syndrome

description: 2q23.1 microduplication syndrome is a rare chromosomal anomaly syndrome, resulting from the partial duplication of the long arm of chromosome 2, primarily characterized by global developmental delay, hypotonia, autistic-like features and behavioral problems. Craniofacial dysmorphism (arched eyebrows, hypertelorism, bilateral ptosis, prominent nose, wide mouth, micro/retrognathia) and an affable personality are also commonly associated. Minor digital anomalies (fifth finger clinodactyly and large, broad first toe) have occasionally been reported.


name: contractures - webbed neck - micrognathia - hypoplastic nipples syndrome


name: idiopathic linear interstitial keratitis

description: Idiopathic linear interstitial keratitis is a rare, acquired ocular disease characterized by migratory or non-migratory, horizontal, linear, stromal infiltrates that may heal spontaneously. Minimal vascularization and scarring may be observed but vision loss is not associated.


name: gastric adenocarcinoma and proximal polyposis of the stomach

description: A rare hereditary gastric cancer characterized by proximal gastric polyposis and increased risk of early-onset, intestinal-type adenocarcinoma of the gastric body, with no duodenal or colorectal polyposis. This is an n-of-1 use case where only one patient or family has been described with this disorder.


7p22.1 microduplication syndrome

description: 7p22.1 microduplication syndrome is a rare chromosomal anomaly syndrome, resulting from a partial interstitial microduplication of the short arm of chromosome 7, characterized by intellectual disability, psychomotor and speech delays, craniofacial dysmorphism (including macrocephaly, frontal bossing, hypertelorism, abnormally slanted palpebral fissures, anteverted nares, low-set ears, microretrognathia) and cryptorchidia. Cardiac (e.g., patent foramen ovale and atrial septal defect), as well as renal, skeletal and ocular abnormalities may also be associated.


name: marfanoid habitus-inguinal hernia-advanced bone age syndrome


Xq12-q13.3 duplication syndrome

description: Xq12-q13.3 duplication syndrome is a rare chromosomal anomaly syndrome, resulting from the partial duplication of the long arm of chromosome X, characterized by global developmental delay, autistic behavior, microcephaly and facial dysmorphism (including down-slanting palpebral fissures, depressed nasal bridge, anteverted nares, long philtrum, down-slanting corners of the mouth). Seizures have also been reported in some patients.


ameloblastoma

description: The most common odontogenic tumor, arising from the epithelial component of the embryonic tooth and usually affecting the molar-ramus region of the mandible or maxilla. Although most ameloblastomas are morphologically and clinically benign, they may cause extensive local destruction, recur, or metastasize.


Meigs syndrome

description: A rare syndrome affecting females. It is characterized by pleural effusion, ascites and non-malignant ovarian neoplasm. This syndrome usually follows a benign course. Prognosis is favorable following surgical resection of the ovarian mass.


ovarian fibrothecoma

description: A rare, benign, sex cord-stromal neoplasm, with a typically unilateral location in the ovary, characterized by mixed features of both fibroma and thecoma. Patients may be asymptomatic or may present with pelvic/abdominal pain and/or distension and, occasionally, with post-menopausal bleeding. Large tumors (>10cm) are often associated with pleural effusion and ascites (the Meigs syndrome triad).


name: autosomal recessive leukoencephalopathy-ischemic stroke-retinitis pigmentosa syndrome

description: Autosomal recessive leukoencephalopathy-ischemic stroke-retinitis pigmentosa syndrome is a rare neurologic disease characterized by global developmental delay, intellectual disability, multiple ischemic lesions in brain MRI, behavioral abnormalities, dystonia, choreic movements and pyramidal syndrome, facial dysmorphism (hypertelorism, arched palate, macroglossia), retinitis pigmentosa, scoliosis, seizures.


name: intellectual disability-hypotonia-brachycephaly-pyloric stenosis-cryptorchidism syndrome


15q overgrowth syndrome

description: 15q overgrowth syndrome is a rare partial autosomal trisomy/tetrasomy characterized by facial dysmorphism (long thin face, prominent forehead, down-slanting palpebral fissures, prominent nose with broad nasal bridge, prominent chin), pre- and postnatal overgrowth, renal anomalies (e.g. horseshoe kidney, renal agenesis, hydronephrosis), mild to severe learning difficulties and behavioral abnormalities. Additional features may include craniosynostosis and macrocephaly.


growing teratoma syndrome

description: A condition characterized by the presence of a growing mature teratoma in a patient during or after chemotherapy for a non-seminomatous germ cell tumor, with normal serum markers for human chorionic gonadotropin and alpha fetoprotein. Complete surgical resection is the preferred treatment.


variant ABeta2M amyloidosis

description: A rare form of amyloidosis characterized by accumulation and extensive visceral deposition of anamyloidogenic variant of beta 2 microglobulin leading to progressive gastrointestinal dysfunction, Sjögren syndrome and autonomic neuropathy.


name: severe neonatal hypotonia-seizures-encephalopathy syndrome due to 5q31.3 microdeletion


name: segmental progressive overgrowth syndrome with fibroadipose hyperplasia

description: A rare PIK3CA-related overgrowth syndrome disease characterized by segmental and progressive overgrowth, predominantly involving the adipose tissue, or a mixture of adipose and fibrous tissue, with variable involvement of subcutaneous and muscular tissue, as well as skeletal overgrowth. Overgrowth severity and range is highly variable, although frequently it is asymmetric and disproportionate, it affects lower extremities more than the upper ones, and progresses in a distal to proximal patten. Congenital overgrowth is typically associated.


van Maldergem syndrome

description: Cerebrofacioarticular syndrome is a rare multiple congenital anomalies syndrome characterized by mild to severe intellectual disability, a distinctive facial gestalt (blepharophimosis, maxillary hypoplasia, telecanthus, microtia and atresia of the external auditory meatus) as well as skeletal and articular abnormalities (e.g. camptodactyly of the fingers, cutaneous syndactyly, talipes equinovarus, flexion contractures of the proximal interphalangeal joints, hip or elbow subluxation, joint laxity). Affected individuals also present neonatal hypotonia, variable respiratory manifestations, chronic feeding difficulties and gray matter heterotopia.


primary bone lymphoma

description: A rare non-Hodgkin lymphoma or even more rarely, a Hodgkin lymphoma that arises from the bone, without lymph node or other extranodal involvement. The femur, spine, and pelvic bones are the most commonly affected sites. The majority of patients present with bone pain in the affected area. A single bone or multiple skeletal sites may be involved. The prognosis is related to the cell type and the stage of the disease.


acquired porencephaly

description: An instance of porencephaly that is acquired during the lifetime of the individual.


primary systemic amyloidosis

description: Primary systemic amyloidosis (PSA) is a form of AL amyloidosis caused by the aggregation and deposition of insoluble amyloid fibrils derived from misfolded monoclonal immunoglobulin light chains usually produced by a plasma cell tumor and characterized by multiple organ involvement.


primary localized amyloidosis

description: Primary localized amyloidosis is a form of AL amyloidosis caused by the aggregation of insoluble amyloid fibrils derived from misfolded monoclonal immunoglobulin light chains usually produced by a plasma cell tumor and characterized by localized amyloid deposition with clinical manifestations restricted to the organ involved, most frequently urinary tract (bladder), eye, respiratory tract (larynx, lungs), and skin.


name: lethal arteriopathy syndrome due to fibulin-4 deficiency


name: atypical dentin dysplasia due to SMOC2 deficiency


silent pituitary adenoma

description: A type of pituitary adenoma that is of unknown cellular origin and that lacks immunocytochemical or fine structural markers. Null cell adenomas are not associated with hormone excess.


malignant peripheral nerve sheath tumor

description: Malignant peripheral nerve sheath tumor (MPNST) is a rare and often aggressive soft tissue sarcoma occurring in a wide range of anatomical sites.


name: autosomal dominant proximal renal tubular acidosis

description: Autosomal dominant proximal renal tubular acidosis (AD pRTA) is a form of proximal renal tubular acidosis (pRTA) characterized by an isolated defect in the proximal tubule leading to the decreased reabsorption of bicarbonate and consequently causing urinary bicarbonate wastage. Mild growth retardation and reduced bone density are extra-renal complications.


severe Canavan disease

description: Severe Canavan disease (CD) is a rapidly progressing neurodegenerative disorder characterized by leukodystrophy with macrocephaly, severe developmental delay and hypotonia.


mild Canavan disease

description: Mild Canavan disease (CD) is a neurodegenerative disorder characterized by mild speech delay or motor development.


Mycobacterium xenopi infection

description: A disease caused by infection with Mycobacterium xenopi.


erythrokeratoderma en cocardes

description: Erythrokeratoderma 'en cocardes' is a rare genodermatosis characterized by circumscribed target-like (or 'en cocardes') erythematous hyperkeratotic lesions. These lesions, which remit and recur, affect the trunk and extremities and are accompanied by scaly plaques evocative of erythrokeratoderma variabilis. Onset usually occurs at birth or during early childhood. Only few cases have been described. Transmission is autosomal dominant.


name: multiple sclerosis-ichthyosis-factor VIII deficiency syndrome

description: Multiple sclerosis-ichthyosis-factor VIII deficiency syndrome is characterized by the association of multiple sclerosis with lamellar ichthyosis and hematological anomalies (beta thalassemia minor and a quantitative deficit of factor VIII-von Willebrand complex). Other clinical manifestations may include eye involvement (optic atrophy, diplopia), neuromuscular involvement (ataxia, pyramidal syndrome, gait disturbance) and sensory disorder. There have been no further descriptions in the literature since 1992.


sclerosteosis

description: Sclerosteosis is a very rare serious sclerosing hyperostosis syndrome characterized clinically by variable syndactyly and progressive skeletal overgrowth (particularly of the skull), resulting in distinctive facial features (mandibular overgrowth, frontal bossing, midfacial hypoplasia), cranial nerve entrapment causing facial palsy and deafness, and potentially lethal elevation of intracranial pressure.


name: classic congenital adrenal hyperplasia due to 21-hydroxylase deficiency, salt wasting form

description: The salt wasting form of classic congenital adrenal hyperplasia due to 21-hydroxylase deficiency (classical 21 OHD CAH) is characterized by virilization of the external genitalia in females, hypocortisolism, precocious pseudopuberty and renal salt loss due to aldosterone deficiency.


name: classic congenital adrenal hyperplasia due to 21-hydroxylase deficiency, simple virilizing form

description: The simple virilizing form of classical congenital adrenal hyperplasia due to 21-hydroxylase deficiency (classical 21 OHD CAH) is characterized by genital ambiguity and virilization of the external genitalia in females, hypocortisolism and precocious pseudopuberty without salt-wasting.


Senior-Loken syndrome

description: Senior-Loken syndrome (SLSN) is a very rare autosomal recessive oculo-renal disease characterized by the association of nephronophthisis (NPHP), a chronic kidney disease, with retinal dystrophy.


congenital pulmonary sequestration

description: A rare congenital abnormality of the lungs. It consists of a mass of lung parenchyma that does not communicate with the bronchial tree and receives its blood supply from the systemic circulation instead of the pulmonary circulation.


Sezary syndrome

description: Sezary syndrome (SS) is an aggressive form of cutaneous T-cell lymphoma characterized by a triad of erythroderma, lymphadenopathy and circulating atypical lymphocytes (Sezary cells).


autosomal dominant spastic ataxia

description: Autosomal dominant form of spastic ataxia.


autosomal recessive spastic ataxia

description: Autosomal recessive form of spastic ataxia.


Siegler-Brewer-Carey syndrome

description: Siegler-Brewer-Carey syndrome is characterized by cataracts, otitis media, intestinal malabsorption, chronic respiratory infection, and failure to thrive. It has been recently described in two sibs born to consanguineous parents. The patients also developed recurrent pneumonia and progressive azotemia leading to end-stage renal disease. Both children died of overwhelming infection (sepsis, meningitis). An autosomal recessive mode of inheritance was proposed.


sirenomelia

description: Sirenomelia is a rare, genetic, developmental defect during embryogenesis disorder characterized by fusion of the lower limbs and associated with some degree of lower extremity reduction and persistent vitelline artery. Patients also present severe malformations of the musculoskeletal system (e.g. sacral agenesis), as well as the urogenital and lower gastrointestinal tracts (e.g. renal agenesis, absent bladder, rectal/anal atresia, and absent internal genitalia). Most cases are stillborn, or die during, or shortly after, birth.


erythrokeratodermia variabilis

description: A rare genetic chronic skin disorder characterized by hyperkeratosis and transient erythema.


infantile spasms-broad thumbs syndrome

description: A rare neurologic disorder characterized by profound developmental delay, facial dysmorphism (i.e. microcephaly, large anterior fontanel, hypertelorism, downslanting palpebral fissures, beaked nose, micrognathia), broad thumbs and flexion and/or extension spasms. Bilateral cataracts, hypertrophic cardiomyopathy and hydrocele have also been reported. EEG shows hypsarrhythmic features and MRI may reveal partial agenesis of the corpus callosum, mild brain atrophy and/or ventriculomegaly. There have been no further descriptions in the literature since 1990.


hypersensitivity pneumonitis

description: Hypersensitivity pneumonitis (HP) is a pulmonary disease with symptoms of dyspnea and cough resulting from the inhalation of an antigen to which the subject has been previously sensitized.


T-B- severe combined immunodeficiency

description: T-B- severe combined immunodeficiency (SCID) is a group of rare monogenic primary immunodeficiency disorders characterized by a lack of functional peripheral T and B lymphocytes, resulting in recurrent early-onset severe respiratory viral, bacterial or fungal infections, diarrhea and failure to thrive. Hypersensitivity to ionizing radiation is a characteristic feature of some of its sub-types.


name: X-linked spasticity-intellectual disability-epilepsy syndrome


spina bifida-hypospadias syndrome

description: Spina bifida-hypospadias syndrome is a rare developmental defect during embryogenesis characterized by the specific association of glandular hypospadias and lumbo-sacral spina bifida. Affected individuals may or may not present additional congenital anomalies, such as hydrocephaly, microstomia, patent ductus arteriosus, cryptorchidism, intestinal malrotation, rocker-bottom feet, and hypertrichosis.


acute erythroid leukemia

description: An acute myeloid leukemia characterized by a predominant immature erythroid population. There are two subtypes recognized: erythroleukemia and pure erythroid leukemia. (WHO, 2001)


colchicine poisoning

description: A potentially life-threatening poisoning, due to ingestion of the drug or consumption of the plant Colchicum autumnale, that usually begins with gastrointestinal symptoms (e.g. abdominal pain, nausea, vomiting, and diarrhea, that cause severe dehydration) and an initial leukocytosis leading to marrow failure (24 hours after ingestion), followed by potentially fatal multi-organ failure with mental status change, oliguric renal failure, disseminated intravascular coagulation, electrolyte imbalance, acid-base disturbance, cardiac failure/arrest and shock within 1-3 days.


methanol poisoning

description: Methanol poisoning is a rare poisoning resulting in elevated anion gap metabolic acidosis, due to the alcohol dehydrogenase (ADH)-mediated production of formic acid (which is poisonous to the central nervous system), and characterized by dizziness, nausea, vomiting, confusion, metabolic acidosis, visual disturbances (which if left untreated can lead to blindness), coma, and death (due to respiratory failure).


ethylene glycol poisoning

description: Ethylene glycol poisoning is a rare poisoning resulting in elevated anion gap metabolic acidosis, due to the production of glycolic acid, glyoxylic acid, and oxalic acid by alcohol dehydrogenase (ADH) in the liver when ethylene glycol is metabolized, characterized initially by euphoria, slurred speech, encephalopathy, coma and seizures, and followed by late manifestations such as tachycardia, arrhythmias, myocardial depression, hemodynamic imbalance and, finally, acute renal failure.


paraquat poisoning

description: Paraquat poisoning is a rare intoxication with paraquat (a non-selective bipyridilium herbicide that has been banned in Europe), usually occurring through ingestion of the poison, and that presents with caustic injury of the oral cavity and pharynx, as well as nausea, vomiting, epigastric pain, lethargy, loss of consciousness and fever. Patients may develop potentially life-threatening complications such as hepatic dysfunction, acute tubular necrosis and renal insufficiency, and respiratory failure (due to pulmonary fibrosis) due to its inherent toxicity and lack of effective treatment. Intoxication via inhalation, injection and dermal or mucus contact have also been reported.


digitalis poisoning

description: Digitalis (digoxin) poisoning is a potentially life-threatening poisoning that provokes conduction disturbances, characterized by increased automaticity and decreased conduction. Acute poisoning presents with the common initial manifestations of nausea and vomiting, cardiovascular manifestations (bradycardia, heart block and a variety of dysrhythmias), central nervous system manifestations (lethargy, confusion and weakness) and hyperkalemia. Chronic poisoning is more insidious, manifesting with gastrointestinal symptoms, altered mental status, and visual disturbances.


name: congenital pulmonary veins atresia or stenosis

description: Congenital pulmonary vein (PV) stenosis or atresia is a rare progressive life-threatening great vessels anomaly characterized by narrowing and obstruction of one or more normally positioned PV at their junction with the left atrium, that usually presents during early infancy with dyspnea, tachypnea, and repeated pulmonary infections, and eventually, when all PV of one lung are affected, results in pulmonary hypertension (PH) and consecutive pulmonary arterial hypertension (PAH). It may manifest as an isolated lesion or associated with other cardiac defects such as congenital pulmonary venous return anomaly and septal defects.


congenital pulmonary valve stenosis

description: Congenital pulmonary stenosis (PS) is a congenital heart malformation that is characterized by a right ventricular outflow obstruction with a clinical presentation that may vary from critical stenosis presenting in the neonatal period to asymptomatic mild stenosis. The obstruction in PS can be at the valvular, subpulmonary, or supravalvular levels (valvular, subpulmonary, supravalvular PS).


distal 17p13.1 microdeletion syndrome

description: Distal 17p13.1 microdeletion syndrome is a rare chromosomal anomaly syndrome characterized by mild global developmental delay/intellectual disability with poor to absent speech, dysmorphic features (long midface, retrognathia with overbite, protruding ears), microcephaly, failure to thrive, wide-based gait and a body posture with knee and elbow flexion and hands held in a midline.


description: A rare, genetic, non-syndromic cerebral malformation characterized by severe intellectual disability, progressive postnatal microcephaly, axial hypotonia, spastic quadriparesis, seizures and facial dysmorphism (bushy eyebrows, hairy forehead, broad nasal root, long flat philtrum, V-shaped upper lip). Additionally, talipes equinovarus, non-obstructive cardiomyopathy, persistent hyperplastic primary vitreous, obstructive hydrocephalus and autistic features may also be associated. On brain magnetic resonance imaging, the 'butterfly sign' is characterisitcally observed and cortical calcifications, agenesis of the corpus callosum, ventriculomegaly, brainstem dysplasia and cerebellar vermis hypoplasia have also been described.


name: chondroectodermal dysplasia with night blindness

description: Chondroectodermal dysplasia with night blindness is a rare genetic bone development disorder characterized by proportionate short stature, nail dysplasia (enlarged, convex, hypertrophic nails), hypodontia and night blindness. Osteopenia, a tendency to present fractures, talipes varus with abnormal gait, ear infections, and watering eyes due to narrow tear ducts are frequently associated. Radiologically patients present delayed bone age on wrist X-rays, platyspondyly, and broad metaphyses of humeri with dense and thickened growth plates.


Lujo hemorrhagic fever

description: Lujo hemorrhagic fever, caused by the Lujo virus (a newly discovered Old World arenavirus) is a zoonotic disease from Zambia, Africa, whose reservoir is unknown and is characterized by fever and hemorrhagic manifestations with an extremely high fatality rate of 80% (in the 5 reported cases to date) and a moderate to high level of nosocomial transmission.


Argentine hemorrhagic fever

description: Argentine hemorrhagic fever (AHF), caused by the Junin virus (JUNV), is an acute viral hemorrhagic disease characterized by initial fever and malaise followed by gastrointestinal symptoms and in some cases hemorrhagic and neurological manifestations.


Bolivian hemorrhagic fever

description: Bolivian hemorrhagic fever (BHF), caused by the Machupo virus (MACV), is a severe acute viral hemorrhagic fever characterized by fever, myalgia, and arthralgia followed by hemorrhagic and neurological manifestations.


Venezuelan hemorrhagic fever

description: Venezuelan hemorrhagic fever (VHF), caused by the Guanarito virus, is a viral hemorrhagic disease characterized by fever, headache, arthralgia, sore throat, convulsions, and hemorrhagic manifestations.


Brazilian hemorrhagic fever

description: Brazilian hemorrhagic fever, caused by the Sabia virus (a newly discovered arenavirus), is a viral hemorrhagic fever, believed to originate from Sao Paulo, Brazil, with only 3 reported cases (2 of which were due to laboratory accidents) to date, characterized by fever, nausea vomiting myalgia tremors, and hemorragic manifestations such as conjunctival petechia and haematemesis, leading potentially to shock, coma and death.


Chapare hemorrhagic fever

description: Chapare hemorrhagic fever, caused by the Chapare virus (a new arenavirus), discovered from a small outbreak in Cochabamba, Bolivia between 2003 and 2004, is an acute viral hemorrhagic fever characterized by fever, myalgia, arthralgia, and multiple hemorrhagic signs. About a third of untreated cases go on to develop more severe symptoms with delirium, coma and convulsions and death (in one case). No other cases have been reported since.