[Amyloid plaque in selected neurodegenerative disorders of the central nervous system].

In this paper a review of the most recent investigations of the pathology of amyloid and of amyloid plaque is presented. The purpose of this report is to describe various clinical conditions (including their etiopathology and clinical manifestations) in which amyloid deposits (especially amyloid plaques) are significant features of the disease. Similarly, to define the neuropathological picture of amyloid deposits, molecular composition of amyloid fibrils and the genes which encode them.