title: Rheumatology corner--polymyositis.
mesh_terms: D000328:Adult; D000368:Aged; D001706:Biopsy; D002648:Child; D004576:Electromyography; D005260:Female; D006801:Humans; D008297:Male; D009132:Muscles / Q000473:pathology; D009220:Myositis / Q000175:diagnosis* / Q000473:pathology