Malignant bone tumors and their metastases.
D001859:Bone Neoplasms / Q000000981:diagnostic imaging* / Q000556:secondary; D006801:Humans; D009362:Neoplasm Metastasis; D012516:Osteosarcoma / Q000000981:diagnostic imaging; D011877:Radionuclide Imaging; D012512:Sarcoma, Ewing / Q000000981:diagnostic imaging