title: Primary osteosarcoma of the kidney.
mesh_terms: D000328:Adult; D006801:Humans; D007680:Kidney Neoplasms / Q000000981:diagnostic imaging*; D008297:Male; D012516:Osteosarcoma / Q000000981:diagnostic imaging* / Q000601:surgery; D011379:Prognosis; D011859:Radiography