[Progressive supranuclear palsy].

Progressive supranuclear palsy, first described as clinical entity by Steele, Richardson and Olszewski, is a degenerative disorder of the central nervous system. Besides progressive supranuclear oculomotor disturbances, other characteristic signs are pseudobulbar paresis, axial rigidity, gait disturbances and subcortical dementia. Misinterpretation in the early stage as Parkinson's disease is frequently seen. A causal therapy is still missing.