Spinocerebellar ataxia type 21

Definition

Spinocerebellar ataxia type 21 (SCA21) is a very rare subtype of type I autosomal dominant cerebellar ataxia (ADCA type I). It is characterized by slowly progressive cerebellar ataxia, mild cognitive impairment, postural and/or resting tremor, bradykinesia, and rigidity.

Also known as SCA21, spinocerebellar ataxia type 21 — per MONDO

Also identified as

• DOID 0050972 per MONDO
• MESH C537200 per MONDO
• OMIM 607454 per MONDO
• Orphanet 98773 per MONDO
• SCTID 718774001 per MONDO
• UMLS C1843891 per MONDO