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J Korean Surg Soc. 2005 Jun;68(6):505-508. Korean. Case Report.
Yun YC , Jun KH , Jung JH , Chin HM , Chun CS .
Department of Surgery, St. Vincent's Hospital, The Catholic University of Korea, Korea.
Department of Clinical Pathology, St. Vincent's Hospital, The Catholic University of Korea, Korea.

A malignant fibrous histiocytoma (MFH) is the most common soft tissue sarcoma in adults. About 70% of tumors arise from the soft tissue of the extremities with only 12~14% of the tumors occur in the retroperitoneum. The clinical characteristics of this tumor consist of an abdominal mass, tendency for local recurrence, paraneoplastic syndrome and a poor prognosis. A 51-year-old woman was admitted to St. Vincent's Hospital with complaining of fever and an abdominal mass. Ultrasound and computed tomography revealed a huge, heterogenous mass in the lesser sac area. The patient underwent an extensive mass resection with a histologic examination revealing a MFH which was positive for alpha1- antitrypsin. We report a case of MFH presenting in the lesser sac with a review of the literatures.

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