Preferred Label : Pontocerebellar hypoplasia, type 2c;
Symbol : PCH2C;
CISMeF acronym : PCH2C;
Type : Phenotype, molecular basis known;
Description : Pontocerebellar hypoplasia (PCH) is a heterogeneous group of disorders characterized
by an abnormally small cerebellum and brainstem. PCH type 2 is characterized by progressive
microcephaly from birth combined with extrapyramidal dyskinesia and chorea, epilepsy,
and normal spinal cord findings (Barth, 1993). For a phenotypic description and a
discussion of genetic heterogeneity of PCH, see PCH1 (607596).;
Inheritance : Autosomal recessive;
Molecular basis : Caused by mutation in the tRNA splicing endonuclease, subunit 2 gene (TSEN34, 608754.0001);