What are the different types of primary bone cancer?
There are several kinds of cancer that start in the bones. In children and young adults under 30 the most common types are Osteosarcoma and Ewing’s sarcoma. Osteosarcoma develops in new tissue (osteoid) in growing bones, and is most often found in the bones around the knees. Ewing’s sarcoma is is thought to arise from immature nerve tissue in the bones and is seen in many bones, particularly the pelvis and upper leg. In adults other common cancers include chondrosarcoma which starts in cartilage, chordoma, malignant fibrous histiocytoma of bone and fibrosarcoma of bone; these are all rare in children. There are a number of other rare types of bone cancer.