Microhydranencephaly, also known as nde1-related microhydranencephaly, is related to microhydranencephaly, x-linked and microcephaly, and has symptoms including athetosis and myoclonic seizures. An important gene associated with Microhydranencephaly is NDE1 (NudE Neurodevelopment Protein 1). Affiliated tissues include brain and cerebellum, and related phenotypes are agenesis of corpus callosum and hyperreflexia