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Dictionary of Cancer Terms
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Ewing family of tumors (YOO-ing ...)

 A group of cancers that includes Ewing tumor of bone (ETB or Ewing sarcoma of bone), extraosseous Ewing (EOE) tumors, primitive neuroectodermal tumors (PNET or peripheral neuroepithelioma), and Askin tumors (PNET of the chest wall). These tumors all come from the same type of stem cell. Also called EFTs.

Previous Definitions:Evacet, evaluable disease, evaluable patients, everolimus, Evista
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