Pontocerebellar Hypoplasia, Type 8, also known as pontocerebellar hypoplasia type 8, is related to pontocerebellar hypoplasia and cerebellar hypoplasia. An important gene associated with Pontocerebellar Hypoplasia, Type 8 is CHMP1A (Charged Multivesicular Body Protein 1A). Affiliated tissues include brain and cerebellum, and related phenotypes are global developmental delay and reduced cerebral white matter volume