Bone sarcomas are those which arise from, or within, the bones and/or cartilage of the skeleton. There are three 'common' bone sarcomas which have different epidemiological, clinical and pathological features.
|Age of Onset||Teens; 30% of cases over 40||Mostly over 50||Teens; almost no cases over 30|
|Gender||Significant male excess||Almost even||Significant male excess|
|Race||No factors identified||No factors||More common in European/Hispanic; very rare in Africans|
|Microscopy||Osteoid deposits, pleomorphic||Irregular lobules of chondrocytes that permeate the bone||Small round blue cell tumour|