Condition: Progressive Supranuclear Palsy

Progressive supranuclear palsy (PSP) is a rare degenerative neurological disorder characterized by loss of balance and impaired walking; loss of control of voluntary eye movement, especially in the downward direction; abnormal muscle tone (rigidity); speech difficulties (dysarthria); and problems related to swallowing and eating (dysphagia). Affected individuals frequently experience personality changes and cognitive impairment. Symptoms typically begin after age 60 but can begin earlier. The exact cause of progressive supranuclear palsy is unknown. PSP is often misdiagnosed as Parkinson disease, Alzheimer disease, or other neurodegenerative disorders.