Parosteal osteosarcoma.
D000293:Adolescent; D000328:Adult; D001859:Bone Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery*; D005260:Female; D005266:Femoral Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery*; D005360:Fibula / Q000601:surgery*; D006801:Humans; D008297:Male; D009362:Neoplasm Metastasis; D009364:Neoplasm Recurrence, Local; D012516:Osteosarcoma / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery*; D011379:Prognosis; D011859:Radiography