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Diagnosis and Treatment of Ewing’s Sarcoma Family of Tumor

Ewing sarcoma is a cancer that occurs primarily in the bone or soft tissue. It can occur in any bone, but is most often found in the extremities and can involve muscle and the soft tissues around the tumor site.

Ewing sarcoma cells can also spread (metastasize) to other areas of the body including the bone marrow, lungs, kidneys, heart, adrenal gland, and other soft tissues. This type of bone tumor accounts for about 30 percent of pediatric bone cancers. Ewing sarcoma most often occurs in children between the ages of 5 and 20.

Some physicians classify Ewing sarcoma as a primitive neuroectodermal tumor (PNET). This means the tumor may have started in fetal, or embryonic, tissue that has developed into nerve tissue.

Information about Ewing’s sarcoma and PNET can be found at Lucile Packard Children’s Hospital, which has excellent programs and physicians.

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