<unk>  is characterized by progressive cerebellar ataxia, leading to clumsiness in body movements, veering from midline when walking, wide-based stance, and falls without signs of paralysis or weakness. Clinical presentation can vary greatly between patients, but mostly affects speech, balance and walking. Other possible neurological problems include spasmodic dysphonia, hypertonia, hyperreflexia, rigidity, dysarthria, dysphagia and neck dystonic posture.
Olivopontocerebellar atrophy
Cerebellar abiotrophy
Cerebellar hypoplasia
Pontocerebellar hypoplasia
Coprolalia
Cerebellar agenesis
Dentatorubral–pallidoluysian atrophy
Harding ataxia