Progressive supranuclear palsy

Alternative Names

Dementia-nuchal dystonia; Richardson-Steele-Olszewski syndrome; Palsy – progressive supranuclear

Definition of Progressive supranuclear palsy

Progressive supranuclear palsy is a movement disorder that occurs from damage to certain nerve cells in the brain.

Causes, incidence, and risk factors

Progressive supranuclear palsy is a condition that causes symptoms similar to those of .

Signs and tests

An exam of the nervous system (neurological examination) may show:


The goal of treatment is to control symptoms. There is no known cure for progressive supranuclear palsy.

Expectations (prognosis)

Treatment sometimes can reduce symptoms temporarily, but the condition will get worse. Brain function will decline over time. Death commonly occurs in 5 to 7 years.


David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc. – 5/5/2010

Central nervous system

ADAM Medical Encyclopedia

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