Spinocerebellar Ataxias

**Definition:** A group of predominately late-onset, cerebellar ataxias which have been divided into multiple subtypes based on clinical features and genetic mapping. Progressive ataxia is a central feature of these conditions, and in certain subtypes POLYNEUROPATHY; DYSARTHRIA; visual loss; and other disorders may develop. (From Joynt, Clinical Neurology, 1997, Ch65, pp 12-17; J Neuropathol Exp Neurol 1998 Jun;57(6):531-43)

**Tree numbers:** - C10.228.140.252.190.530 - C10.228.140.252.700.700 - C10.228.854.787.875 - C10.574.500.825.700 - C10.597.350.090.500.530 - C16.320.400.780.875

**Synonyms:** - Spinocerebellar Atrophies