Retrospective Assessment of Patients with Pediatric Ewing's Sarcoma

Abstract

In this study, 27 patients with Ewing's sarcoma admitted to Pediatric Hematology and Oncology Department were evaluated retrospectively. The epidemiologic and clinical features, treatment results, long term side effects of therapy of 27 patients with Ewing's sarcoma were analyzed. The mean age of patients with Ewing's sarcoma (n=27) was 11.36 ±3.98 years (range, 8 months-17.9 years) and male/female ratio was 1.7. The most common complaints were pain (96.3%) and swelling (100%). A total of 16 (59.3%) primary tumors were located in an extremity, whereas 11 (40.7%) occured in the axial skeleton. The most common primary lesion sites were femur (26%), tibia (14.8%), pelvis(14.8%) and fbula (11.1%) respectively. At diagnosis 3 patients (11.1%) had bone marrow metastases. A total of 9 patients (33.3%) had metastases at diagnosis. 23 patients (92%) received neoadjuvant chemotherapy and 17 patients received (77.2%) adjuvant chemotherapy. Limb salvage surgery was applied in 13 patients and amputation was made in 2 patients. Seventeen patients (65.3%) received radiotherapy; to the primary lesion site in 11 patients, the metastatic site in 5 patients, and both sites in one patient. The mean and median follow-up of patients with Ewing's sarcoma was 35.5 and 19 months respectively (maximum 355 months). The overall survival rate was 22.4±10.9 %. © 2010 OMÜ Tüm Haklari Saklidir.