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Ewing's sarcoma can occur any time during childhood and young adulthood, but usually develops during puberty, when bones are growing rapidly. It is uncommon in African-American, African, and Chinese children.
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The causes of Ewing's sarcoma are not known. It is possible that certain inherited conditions increase the risk of developing this cancer.About two-thirds of patients with Ewing's sarcoma have a painful swelling or lump that can be felt in the aff...
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