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GENATLAS PHENOTYPE
last update : 29-08-2016
Symbol PCH9
Location 1p13.3
Name pontocerebellar hypoplasia, type 9
Corresponding gene AMPD2
Main clinical features
  • neurodevelopmental and neurodegenerative disorder characterized by severely delayed psychomotor development, progressive microcephaly, spasticity, seizures, and brain abnormalities, including brain atrophy, thin corpus callosum, and delayed myelination
  • profoundly delayed psychomotor development, and spasticity, and seizures
  • brain imaging showed hypoplasia or atrophy of the cerebellum with a fluid-filled posterior fossa and flattening of the ventral part of the pons, and also generalized atrophy of the cerebral cortex and severe corpus callosum hypoplasia
  • Genetic determination autosomal recessive
    Function/system disorder neurology
    Type disease
    Remark(s)