Ewing's sarcoma of the pelvis. Long-term survival and functional outcome.

Fifty patients with Ewing's sarcoma of the pelvis were treated using a multidisciplinary approach; followup of surviving patients averaged 137 months (range, 40-276 months). The addition of surgical resection to the multidisciplinary treatment for all patients was associated with improved survival compared with survival of patients treated with chemotherapy and radiation therapy alone; the addition of surgery to the treatment regimen of 37 patients without metastases also was associated with improved survival. There were no significant differences between the surgical and nonsurgical groups in terms of tumor size, stage of disease, patient age, duration of symptoms before diagnosis, or anatomic site.