Spinocerebellar ataxia 8 (SCA8)

Neurodegenerative diseases

General description

Spinocerebellar ataxia type 8 (SCA8) is a disorder caused by an abnormal CAG triplet repeat expansion in the Ataxin 8 gene, with a characteristic clinical presentation of cerebellar ataxia, auditory dysfunction, and oculomotor abnormalities, manifesting in both infancy/early childhood and adulthood.

Cerebellar atrophy

  • Cerebellum
Bilateral
Morphology
Atrophy

Neuroimaging typically reveals atrophy limited to the cerebellum.