[Case of polymyositis resembling progressive muscular dystrophy].
D000328:Adult; D003882:Dermatomyositis / Q000175:diagnosis*; D003937:Diagnosis, Differential; D004576:Electromyography; D006801:Humans; D008297:Male; D009135:Muscular Diseases / Q000175:diagnosis*; D009136:Muscular Dystrophies / Q000175:diagnosis*