Tumors of bone.
D001859:Bone Neoplasms / Q000473:pathology*; D002812:Chondroma / Q000473:pathology; D005870:Giant Cell Tumors / Q000473:pathology; D006801:Humans; D009101:Multiple Myeloma / Q000473:pathology; D012516:Osteosarcoma / Q000473:pathology; D011379:Prognosis; D012512:Sarcoma, Ewing / Q000473:pathology