| Phenotype details |
walk-14m; febrile convulsion at infant; speech dysarthria, small voice; cognitive dysfunction during childhood; developmental delay, intellectual disability; gait possible; cognitive dysfunction; 39y-Parkinsonism, rigidity, no tremor; no postural abnormality; no dystonia; increasing deep tendon reflex; progressive dementia during adulthood; progressive dementia during adulthood; no psychiatric symptoms; no epileptic seizure; excellent Levodopa responsive; no Levodopa-induced dyskinesia; no RETT-like features; no sleep problems; no ocular defects; EEG normal; MRI brain T2 hypointense substantia nigra and globus pallidus (high iron), T1 hyperintense ‘halo’ in midbrain, no eye-of-the-tiger sign, no white matter involvement, no cerebral atrophy, no cerebellar atrophy, SPECT hypoperfusion occipital, no MIBG myocardial scintigraphy washout |