- X-linked spinocerebellar ataxia 3 [DOID:0111831]
An X-linked cerebellar ataxia characterized by onset in infancy of hypotonia, ataxia, sensorineural deafness, developmental delay, esotropia, and optic atrophy with X-linked inheritance.
- X-linked spinocerebellar ataxia 2 [DOID:0111830]
An X-linked cerebellar ataxia characterized by infantile onset of ataxia, severe atrophy of the cerebellum, diffuse small cysts, pale inferior olives, and gliosis with X-linked inheritance.