Progressive supranuclear palsy is a rare brain disease that affects walking, balance, eye movements and swallowing. The disease results from the damage of cells in areas of the brain that control body movement, coordination, thinking and other important functions. Progressive supranuclear palsy also is called Steele-Richardson-Olszewski syndrome.
Progressive supranuclear palsy worsens over time and can lead to dangerous complications, such as pneumonia and trouble swallowing. There’s no cure for progressive supranuclear palsy, so treatment focuses on managing the symptoms.