Neurodevelopmental Disorder with Spasticity, Hypomyelinating Leukodystrophy, and Brain Abnormalities, is also known as polymicrogyria, perisylvian, with cerebellar hypoplasia and arthrogryposis. An important gene associated with Neurodevelopmental Disorder with Spasticity, Hypomyelinating Leukodystrophy, and Brain Abnormalities is PI4KA (Phosphatidylinositol 4-Kinase Alpha). Affiliated tissues include brain and eye, and related phenotypes are micrognathia and talipes equinovarus