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how we produce our information| Understanding more about what
your bones do might help you understand what bone cancer is.
Bones are like human scaffolding - they help keep us upright.
Diagram of the skeleton View a large version of the diagram of
the skeleton| The structure of a bone View a large version of
the diagram of the structure of a bone| These are the main types
of connective tissue that help bones move: There are different
types of bone cancer. The two most common kinds to affect
teenagers are osteosarcoma and Ewing sarcoma. Osteosarcomas
(sometimes called osteogenic sarcomas) are most likely to affect
bones in the leg, especially around the knee joint, but they can
affect any bone. The word sarcoma is name for a cancer that
starts in connective tissue, such as bone, muscle, fat or
cartilage. We don’t know what causes bone cancer. But because
it’s more common in young people, doctors think that it might
have something to do with the cha