“…Important prognostic factors for STS include size, grade, metastasis, and resection margin [1,2,4±8]. Retroperitoneal and pelvic STS have been noted for large size at presentation [2,5,7], extracompartmental extension [4,8], high grade [2], and dif®culty in obtaining wide surgical resection margins [6,7,9±14]. Various methods of treatment for pelvic STS have been described and include nonsurgical management [3], piecemeal excision [5], wide resection [3], internal hemipelvectomy [2], and hindquarter amputation [2,4].…”