A CASE OF PRIMARY LIPOSARCOMA ARISING FROM THE MESENTERY OF SIGMOID COLON RESECTED FIVE TIMES OVER SIXTEEN YEARS

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  • １６年間で５回の摘出術を施行したＳ状結腸間膜原発脂肪肉腫の１例

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Abstract

We report a long-surviving case of liposarcoma arising from the mesocolon requiring five opera-tions. A tumor 10cm in diameter arising from the mesentery of the sigmoid colon was removed from a 58-year-old female in November 1989. The pathological diagnosis was a well-differentiated liposarcoma. The follow-up CT scan disclosed local recurrence of the tumor in the retroperitoneum in January 1994. The tumor was removed with partial resection of the adjacent rectum. Thereafter, we performed resections three times for recurrences of retroperitoneum and buttocks after the second operation. Pathological examination of the resected specimens at the second and fourth operation yielded a diagnosis of dedifferentiated liposarcoma. There is no evidence of recurrence after the fifth operation, 16 years after the first one.<br> In principal, surgery is the treatment of choice for liposarcoma, so one should perform acurative operation repeatedly in the case of postoperative local recurrence without distant metastasis.

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