[Postpoliomyelitic progressive amyotrophy].

Two clinical cases of post-poliomyelitic progressive amyotrophy (PPA) are described. One patient had serological tests of the blood and cerebrospinal fluid for viruses of poliomyelitis, measles, simple herpes and tick-borne encephalitis which were negative. The authors suggest that PPA develops in patients with a peculiar genetic predisposition and altered homeostasis and is a degenerative-dystrophic disease of the motor nerve.