Ann Coloproctol.  2019 Jun;35(3):152-154. 10.3393/ac.2018.03.11.

Primary Undifferentiated Pleomorphic Sarcoma of the Colon Mesentery

Affiliations
  • 1Department of Surgery, Wonkwang University Hospital, Wonkwang University School of Medicine, Iksan, Korea. parkwc@wku.ac.kr

Abstract

An undifferentiated pleomorphic sarcoma (UPS), also known as a malignant fibrous histiocytoma in the past, commonly involves the soft tissue of the extremities and the retroperitoneum. However, a primary UPS of the colon mesentery is very rare. A 69-year-old male patient visited our outpatient department for treatment of an enlarged, palpable mass in the right lower quadrant (RLQ). Computed tomography showed a 15-cm multilobulated, heterogeneous, enhanced mass in the RLQ, which we suspected originated from the colon. He underwent a right hemicolectomy, and the pathologic result was a colon mesenteric UPS. We report a rare case of a primary UPS of the colon mesentery and discuss the characteristics of this neoplasm in reference to the literature.

Keyword

Undifferentiated pleomorphic sarcoma; Malignant fibrous histiocytoma; Mesentery

MeSH Terms

Aged
Colon*
Extremities
Histiocytoma, Malignant Fibrous
Humans
Male
Mesentery*
Outpatients
Sarcoma*
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