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Spinocerebellar ataxia type 6

Disease definition

Spinocerebellar ataxia type 6 (SCA6) is the most common subtype of autosomal dominant cerebellar ataxia type III (ADCA type III; see this term) characterized by late-onset and slowly progressive gait ataxia and other cerebellar signs such as impaired muscle coordination and nystagmus.


  • Synonym(s):
    • SCA6
  • Prevalence: 1-9 / 1 000 000
  • Inheritance: Autosomal dominant 
  • Age of onset: Adolescent, Adult, Elderly
  • ICD-10: G11.2
  • OMIM: 183086
  • UMLS: C0752124
  • MeSH: -
  • GARD: 10351
  • MedDRA: -

Detailed information

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