Bones are critical for many reasons including providing support, protection to internal organs, and blood cell production to name a few. Cancer within the bones is nearly always a result of other cancers metastasizing. In fact, only 0.2% of all cancers first occur in the bones. Types of bone cancer include Ewing sarcoma, which can occur in either bone or tissue, osteosarcoma, chondrosarcoma (cartilage cancer), and chordoma which typically originates in the spinal cord. Approximately 3,500 bone cancer diagnoses are made each year in the United States.