Focal eosinophilic myositis.
D000328:Adult; D001707:Biopsy, Needle; D004802:Eosinophilia / Q000175:diagnosis / Q000188:drug therapy / Q000473:pathology*; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D009220:Myositis / Q000175:diagnosis / Q000188:drug therapy / Q000473:pathology*; D011241:Prednisone / Q000008:administration & dosage; D016896:Treatment Outcome