| Phenotype details |
walk-2y; febrile convulsion at infant; no speech; cognitive dysfunction during childhood; developmental delay, intellectual disability; wheelchair bound; cognitive dysfunction; 32y-Parkinsonism, rigidity, no tremor; postural abnormality; no dystonia; increasing deep tendon reflex; no appearances of pathologic reflex; progressive dementia during adulthood; no psychiatric symptoms; 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, diffuse cerebral atrophy (rt < lt), no cerebellar atrophy |