| Phenotype details |
normal birth and early milestones; onset late 20s, cognitive decline, depression; pyramidal syndrome (increased tone, brisk reflexes, upgoing plantars); cerebellar syndrome (upper and lower limb ataxia); Parkinsonism hypophonia, hypomimia, bradykinesia; dystonia limb dystonia and orofacial dyskinesias; PEG inserted in advance stage; memory decline with severe impaired recall; MRI brain basal ganglia, thalamus, cerebellum, deep gray matter |