It is a cancer of cartilage cells within the bone. Cartilage is the shiny, smooth substance that normally covers the ends of bones in the joints. But it can also be found within the bone.

After battling to have an X-ray, it was revealed her humerus had broken under the pressure of the 13cm tumour growing on it ...

The humerus is your upper arm bone. It is the longest bone in the upper part of your body and is connected to many important tendons and ligaments. The top of the humerus is part of the shoulder ...