Corticobasal degeneration:: a review of the literature.

Cortico-basal degeneration (GBD) has recently emerged as a distinctive entity of the Parkinson-plus syndromes but presents with great clinical and anatomopathological heterogeneity. The purpose of this review is to increase awareness of the syndrome and facilitate its recognition in both typical and unusual cases. We will herein review the 398 cases found in the English and French literature with their clinical, laboratory and pathological features.