Fig. 11. Pattern of iron deposition in atypical parkinsonism.

A. A 77-year-old male patient diagnosed with progressive supranuclear palsy shows prominent iron deposition in the bilateral substantia nigra and red nucleus. Note the markedly decreased distance between the red nucleus and substantia nigra.

B. A 50-year-old female patient diagnosed with multiple system atrophy with predominant parkinsonism shows characteristic atrophy of the bilateral posterior putamen with prominent iron deposition.