This report describes general characteristics of pontocerebellar hypoplasia (PCH). PCH is a genetically heterogeneous disorder, with multiple causative genes and mapped loci; all subtypes exhibit autosomal recessive inheritance. A listing of PCH subtypes, as defined by OMIM, can be found by following the link below in the 'Related Diseases' section. In the table in that section are links to more detailed reports for subtypes that have been investigated using fly models.
[updated Apr. 2022 by FlyBase; FBrf0222196]
Multiple subtypes of pontocerebellar hypoplasia have been described. All forms of this condition are characterized by impaired brain development, delayed development overall, problems with movement, and intellectual disability. The brain abnormalities are usually present at birth, and in some cases they can be detected before birth. Many children with pontocerebellar hypoplasia live only into infancy or childhood, although some affected individuals have lived into adulthood. [MedlinePlus, Pontocerebellar hypoplasia; 2022.04.16]
Pontocerebellar hypoplasia (PCH) refers to a group of severe neurodegenerative disorders affecting growth and function of the brainstem and cerebellum, resulting in abnormally small cerebellum and brainstem. [from MIM:607596; 2022.04.16]
All subtypes of pontocerebellar hypoplasia exhibit autosomal recessive inheritance. [from MIM:PS607596; 2022.04.16]