Vascular Tumors
Prognosis Hemangiomas → benign lesions Hemangioendothelioma → good prognosis Angiosarcoma → poor prognosis 51.1 Characteristics of the Single Entities 51.1.1 Hemangioma of Bone Definition: Benign solitary tumor composed of newly formed vessels. Epidemiology: Rare tumors, accounting…
Liposarcomas
Localization: Anywhere there is fat. Most common in thigh, retroperitoneum, inguinal region, and popliteal fossa. Never in the hands, feet, and neck. Clinical: Insidiously growing, deep-seated, ill-defined mass that usually…
Parosteal Osteosarcoma
Localization: Almost exclusive of the long bones, it originates from the metaphysis. Rare in the diaphyses, exceptional in flat bones. The most typical site is the distal metaphysis of the…
