Mondo Description A novel very rare form of pontocerebellar hypoplasia (see this term) characterized clinically by progressive microencephaly, feeding difficulties, severe developmental delay, although walking may be achieved, hypotonia often associated with increased muscle tone of lower extremities and deep tendon reflexes, joint deformities in the lower extremities, and occasionally complex seizures. PCH8 is caused by a loss-of-function mutation in the CHMP1A gene. MRI demonstrates a pontocerebellar hypoplasia with vermis and hemispheres equally affected and mild to severely reduced cerebral white matter volume with a fully formed very thin corpus callosum.
Uniprot Description An autosomal recessive neurodevelopmental disorder characterized by severe psychomotor retardation, abnormal movements, hypotonia, spasticity, and variable visual defects. Brain MRI shows pontocerebellar hypoplasia, decreased cerebral white matter, and a thin corpus callosum.
Disease Ontology Description A pontocerebellar hypoplasia that is characterized by delayed psychomotor development, chorea, hypotonia, spasticity and visual defects, has_material_basis_in autosomal recessive inheritance of mutation in the CHMP1A gene.
Mondo Term and Equivalent IDs
MONDO:0013990: pontocerebellar hypoplasia type 8