What is the best treatment of ewing sarcoma?

is?
1-chemotherapy
2-surgery
3-radiation

This depends on the area or involvement and extent of involvement. This tumor of children develops in fetal life due to a chromosoma abnormality. You listed the treatment other than amputation and fitting of a prosthesis. An oncologist should decide the treatment.

All the three - 1-surgery, 2. chemotherapy, and 3-radiation - need to be given for Ewing's Sarcoma. see the details.

Ewing's sarcoma is the common name for primitive neuroectodermal tumor. It is a rare disease in which cancer cells are found in the bone or in soft tissue. The most common areas in which it occurs are the pelvis, the femur, the humerus, and the ribs. James Ewing (1866-1943) first described the tumor, establishing that the disease was separate from lymphoma and other types of cancer known at that time. Ewing's sarcoma occurs most frequently in male teenagers. Ewing's sarcoma is the result of a translocation between chromosomes 11 and 22, which fuses the EWS gene of chromosome 22 to the FLI1 gene of chromosome 11.

Because almost all patients with apparently localized disease at diagnosis have occult metastatic disease, multidrug chemotherapy as well as local disease control with surgery and/or radiation is indicated in the treatment of all patients . Treatment often consists of adjuvant chemotherapy generally followed by wide or radical excision, and may also include radiotherapy. Complete excision at the time of biopsy may be performed if malignancy is confirmed at that time. Treatment lengths vary depending on location and stage of the disease at diagnosis, however most patients will undergo chemotherapy for 6-12 months and radiation therapy for 5-8 weeks.

4. All of the above.

If limited to 1, it would be surgery.

All 3.
Cancer RN x 12 yrs.