Megalencephaly-Polymicrogyria-Polydactyly-Hydrocephalus Syndrome 2, is also known as mpph2. An important gene associated with Megalencephaly-Polymicrogyria-Polydactyly-Hydrocephalus Syndrome 2 is AKT3 (AKT Serine/Threonine Kinase 3). Affiliated tissues include liver and skin, and related phenotypes are seizure and hemimegalencephaly