bone, joint, and muscle disorders
Primary Cancerous Bone Tumors
Fibrosarcomas and undifferentiated pleomorphic sarcomas of bone
Fibrosarcomas and undifferentiated pleomorphic sarcomas of bone (formerly known as malignant fibrous histiocytoma of bone) affect the same age group as and are similar to Osteosarcomas (osteogenic sarcoma) in appearance, location, and symptoms. These cancerous tumors have cells that produce cancerous fibrous tissue (connective tissue) rather than cancerous bony tissue. Treatment and survival rates are similar to that of osteosarcoma. 