Cerebellar Hypoplasia

Cerebellar hypoplasia is a rare embryonic developmental disorder in which the cerebellum is either missing entirely or is smaller than usual. It may be genetic or occur sporadically. Cerebellar hypoplasia may be caused by thyroid abnormalities, environmental influences such as drugs and chemicals or viral infections or stroke. Cerebellar hypoplasia may be associated with other disorders including Dandy-Walker syndrome, Werdnig-Hoffmann syndrome and Walker-Warburg syndrome. This disorder has also been known to be a symptom of Acutane embryopathy and Meckel syndrome.