label: megalencephaly-polymicrogyria-polydactyly-hydrocephalus syndrome 1
label_lc: megalencephaly-polymicrogyria-polydactyly-hydrocephalus syndrome 1
description: "Any megalencephaly-polymicrogyria-postaxial polydactyly-hydrocephalus syndrome in which the cause of the disease is a mutation in the PIK3R2 gene."