Х-зчеплена спіноцеребеллярна атаксія, тип 4

Визначення(English summary)

A rare X-linked spinocerebellar ataxia characterized by ataxia, pyramidal tract signs and adult-onset dementia. The disease manifests during early childhood with delayed walking and tremor. The pyramidal signs appear progressively and by adulthood memory problems and dementia gradually become apparent.