label: Alpha Thalassemia X-Linked Mental Retardation Syndrome
label_lc: alpha thalassemia x-linked mental retardation syndrome
description: "A rare, X-linked recessive inherited syndrome caused by mutations in the ATRX gene. It is characterized by intellectual disability, developmental delays, hypotonia, widely spaced eyes, small nose, low-set ears, tented upper lip, skeletal abnormalities, and a mild form of alpha thalassemia."