Ewing Sarcoma
Ewing sarcoma is a cancer that occurs primarily in the bone or soft tissue. While Ewing sarcoma can develop in any bone, it is most often found in the hip bones, ribs, or long bones (e.g., femur (thighbone), tibia (shinbone) or humerus (upper arm bone)). It can involve the muscle and the soft tissues around the tumor as well. Ewing sarcoma cells can also metastasize (spread) to other areas of the body, including the bone marrow, lungs, kidneys, heart, adrenal glands and other soft tissues.

Under the microscope, Ewing sarcoma cells appear small, round and blue.

Ewing sarcoma gets its name from Dr. James Ewing, the doctor who first described the tumor in the 1920s.

Who gets Ewing Sarcoma?
As the second-most common type of bone cancer affecting children and young adults, it accounts for about 1 percent of childhood cancers. About 225 children and adolescents are diagnosed with Ewing sarcoma in the U.S. each year.

While Ewing sarcoma can occur at any time during childhood, it most commonly develops during puberty, when bones are growing rapidly. Ewing sarcoma most often occurs in children between the ages of 10 and 20. More males are affected than females. This type of cancer is uncommon in African-American, African and Chinese children.