What is the proper term for bone cancer?

The proper term for bone cancer is "osteosarcoma" when referring specifically to the most common type of bone cancer that originates in the osteoblast cells. Other types of bone cancer include "chondrosarcoma," which arises from cartilage cells, and "Ewing sarcoma," typically affecting children and young adults. Bone cancers can be primary, originating in the bone itself, or secondary, which means they have metastasized from other parts of the body.