This PDQ cancer information summary for health professionals provides comprehensive, peer-reviewed, evidence-based information about the treatment of the Ewing sarcoma family of tumors (ESFT). This summary is reviewed regularly and updated as necessary by the PDQ Pediatric Treatment Editorial Board.

In this summary, the ESFT includes:

• Ewing tumor of bone (ETB) — tumor that begins in the bone including:
  • Classic Ewing sarcoma.
  • Primitive neuroectodermal tumor.
  • Askin tumor of the chest wall.
• Ewing sarcoma — tumor that begins at a site other than the bone; referred to as extraosseous Ewing sarcoma (EOE).

Information about the following is included in this summary:

• Cellular classification.
• Stage information.
• Treatment options.

This summary is intended as a resource to inform and assist clinicians and other health professionals who care for pediatric cancer patients. It does not provide formal guidelines or recommendations for making health care decisions.

Some of the reference citations in this summary are accompanied by a level-of-evidence designation. These designations are intended to help readers assess the strength of the evidence supporting the use of specific interventions or approaches. The PDQ Pediatric and Adult Treatment Editorial Boards use a formal evidence ranking system in developing their level-of-evidence designations. Based on the strength of the available evidence, treatment options are described as either “standard” or “under clinical evaluation.” These classifications should not be used as a basis for reimbursement determinations.

This summary is also available in a patient version, which is written in less technical language, and in Spanish.

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