Three Cases of Progressive Supranuclear Palsy

Progressive supranuclear palsy (PSP) is a kind of chronic neurodegenerative diseases, the main clinical characteristics of which are loss of voluntary control of vertical gaze, particularly downgaze, dysarthria. Diffuse body rigidity with dystonic extension of the peck, and dementia In its earlier stages, PSP can be misdiagnosed as Parkinson's disease because of lack of awareness of the disease and symptoms and signs may not be diagnostic until the disease is advanced. About 4% of all patients with parkinson's disease turn out eventually to have progressive supranuclear palsy. We report the three cases of PSP with MRI brain scan.