Unusual sites of Ewing sarcoma (ES): A retrospective multicenter 30-year experience of the Italian Association of Pediatric Hematology and Oncology (AIEOP) and Italian Sarcoma Group (ISG)

The probability of successful treatment did not differ from ES of the extremities. Furthermore, our series confirm the poor prognosis for patients with metastatic disease. Our data do not strengthen the need for a specific protocol for unusual site ES.