Synovial sarcoma.
D000293:Adolescent; D000328:Adult; D005260:Female; D005266:Femoral Neoplasms / Q000648:ultrastructure*; D005542:Forearm / Q000473:pathology; D006651:Histocytochemistry; D006801:Humans; D008297:Male; D012509:Sarcoma / Q000648:ultrastructure; D013584:Sarcoma, Synovial / Q000175:diagnosis / Q000473:pathology* / Q000648:ultrastructure; D012878:Skin Neoplasms / Q000473:pathology; D013848:Thigh / Q000473:pathology