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PELVIC EWING’S SARCOMA: SCOTTISH BONE TUMOUR REGISTRY EXPERIENCE



Abstract

Between 1948 and 2004, we report 34 patients with Ewing’s sarcoma of pelvis accrued from Scottish Bone Tumour Registry, aiming to identify the prognostic factors and the influence of various treatment modalities on outcome. There were 19 male and 15 female patients at a mean age of 19 years (range, 3 to 48 years). The Pain was main presenting symptom in 30, swelling in 12 and restriction of hip movements in 11 patients. The commonest anatomical site was ilium. Local control was achieved by surgery, radiotherapy (n=25), chemotherapy (n=23) or a combination. The survival correlated significantly with chemotherapy protocols in favour of the group that received ifosamide (p< 0.01). Metastases at presentation was the most important factor determining survival (P< 0.01). Among the patients who presented without metastases (n=25), there was no statistically significant difference in survival based on the anatomical location of the tumour, age or sex. The mean time to lung metastases from the date of presentation was 13 months, while bone metastases presented at an average of 20 months. None of the patients with the metastasis or local recurrence survived. There were 5 local and 17 systemic (metastatic) relapses. The mean duration of survival was 13 months.

With advances in imaging, aggressive chemotherapy, surgery and conformal radiotherapy which can deliver high dose of radiation with precision, it is possible to achieve a cure rate of more that 50% in non-metastatic pelvic Ewing’s sarcoma. The results of this study favour a middle-path regime combining all treatment modalities.

The abstracts were prepared by Mrs Leslie O’Leary. Correspondence should be addressed to her at British Orthopaedic Association, 35–43 Lincoln’s Inn Fields, London WC2A 3PE or at l.oleary@boa.ac.uk