"170.9" . "Ewing sarcomas"@en . . "C41.9" . "133450"^^ . "D012512" . "Ewing's sarcoma or Ewing sarcoma (/\u02C8ju\u02D0\u026A\u014B/) is a malignant small, round, blue cell tumor. It is a rare disease in which cancer cells are found in the bone or in soft tissue."@en . .