[Polymyositis with remarkable pathological changes in myocardium and conduction system: report of a case].
D004562:Electrocardiography; D006329:Heart Conduction System / Q000473:pathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009206:Myocardium / Q000473:pathology*; D009220:Myositis / Q000473:pathology* / Q000503:physiopathology