Children's Hospital Colorado
Orthopedic Tumor Program

Ewing's Sarcoma in Children

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What is Ewing's sarcoma?

Ewing's sarcoma is a tumor made up of cancer cells that occurs in or around bone. It is the second most common type of bone cancer in children and adolescents and accounts for about 3% of all childhood cancers. Ewing's sarcoma most often occurs in school-age kids, adolescents and young adults. The Orthopedic Tumor Program at Children's Hospital Colorado treats all patients with Ewing's sarcoma up to age 30.

The most common tumor locations include the arm and leg bones, the pelvic bone and the chest wall (ribs). However, Ewing's sarcoma can occur in any bone of the body. The muscles and soft tissues around the tumor can also be affected to varying degrees.

Some cancerous tumors are localized, meaning the cancer cells have not spread beyond the bone and nearby tissues to other parts of the body. Other tumors are metastasized, meaning the cancer cells have spread to other parts of the body. The most common places for the cancer cells to spread are to the lungs and/or other bones.

Causes of Ewing's Sarcoma

Ewing's sarcoma most often occurs in school-age children (ages 6-12), adolescents and young adults and affects both boys and girls. There is no known cause or methods of prevention for Ewing's sarcoma at this time.

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