| Phenotype details | cerebellar ataxia, bilateral vestibulopathy, autonomic nervous system and cough; upper limb ataxia (HP:0001251); lower limb ataxia (HP:0001251); gait ataxia (HP:0002066); oculomotor abnormalities (HP:0000496); no truncal ataxia (-HP:0002078); cerebellar dysarthria (HP:0001260); bilateral hypofunction on video head impulse test; no sensory and/or motor impairment on NCS; autonomic nervous system dysfunction (HP:0002270); MRI brain superior and posterior vermal, mild hemispheric atrophy; chronic cough |