Adults with Ewing's sarcoma. An analysis of 16 patients at the Dana-Farber Cancer Institute.

Between 1975 and 1985, 16 patients with Ewing's sarcoma were treated in the Adult Sarcoma Clinic at the Dana-Farber Cancer Institute. Of 10 patients with extraskeletal or pelvic primaries, 2 (1 pelvic, 1 extraskeletal) are surviving disease-free at 77 and 103 months from diagnosis. Of the six remaining patients, 5 are alive from 38 to 125 months from diagnosis. No relapses were documented after 18 months of disease-free survival. Adults with localized skeletal Ewing's sarcoma outside the pelvis respond well to multimodality therapy. However, pelvic and extraskeletal disease occur in a disproportionately large segment of this older population and are associated with a poor prognosis.