| Phenotype details |
see paper; ..., no abnormalities during pregnancy; normal delivery; birth term; no intellectual disability; no developmental delay; no motor delay; no speech delay; dysarthria; no epilepsy; no hypotonia; no spasticity; generalized ataxia of moderate severity; unexplained progression of cerebellar signs starting at age 27y coinciding intentional weight loss of 16 kg; no behavioral disturbances; no sleep disturbances; MRI brain cerebellar atrophy; no regression; no other neurological abnormalities; no facial dysmorphisms; no dental/oral abnormalities; no drooling, dysphagia; no hearing abnormalities; no vision abnormalities; no cardiac abnormalities; no skeletal abnormalities, no limb abnormalities; no hypermobility joints; no gastrointestinal abnormalities; no urogenital abnormalities; muscle inflammation - biopsy proven; normal skin, normal hair, normal nails; no neoplasms |