A Case of Lipoma of Parietal Peritoneum Causing Abdominal Pain

Chang Seok Bang; Yeon Soo Kim; Gwang Ho Baik; Sang Hak Han

doi:10.4166/kjg.2014.63.6.369

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Bang, Kim, Baik, and Han: A Case of Lipoma of Parietal Peritoneum Causing Abdominal Pain

Case Report

Korean J Gastroenterol 2014;63(6):369-372.

Published online: 4 October 2014

DOI: https://doi.org/10.4166/kjg.2014.63.6.369

A Case of Lipoma of Parietal Peritoneum Causing Abdominal Pain

Chang Seok Bang, Yeon Soo Kim, Gwang Ho Baik, Sang Hak Han¹

Department of Internal Medicine, Hallym University College of Medicine, Chuncheon, Korea

¹Department of Pathology, Hallym University College of Medicine, Chuncheon, Korea

Correspondence to: Yeon Soo Kim, Department of Internal Medicine, Hallym University Chuncheon Sacred Heart Hospital, 77 Sakju-ro, Chuncheon 200-704, Korea. Tel: +82-33-240-5821, Fax: +82-33-241-8064, E-mail: kimyeonsoo@hallym.or.kr

Received 5 October 201328 November 2013 Accepted 29 November 2013

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Lipomas are common benign tumors of mature adipose tissue, enclosed by thin fibrous capsules. They can occur on any part of the body; however, peritoneal lipoma is extremely rare. We encountered a case of a 75-year-old man presenting with intermittent abdominal pain, who had undergone right hemicolectomy due to colon cancer. Abdominal computerized tomography showed a well-defined heterogenous fatty mass measuring 4.5×3.5 cm in size, suggesting fat necrosis located in the abdominal wall. Laparotomy showed a very large soft mass of peritoneum. Pathologically, the tumor was diagnosed as lipoma containing fat necrosis located in parietal peritoneum not fixed to any organs, but with small bowel adhesion. Due to its rare etiologic origin and obscure cause of development, we report on a case of lipoma of parietal peritoneum causing abdominal pain.

Keywords: Lipoma, Peritoneum

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Fig. 1.

Computed tomography findings. (A) A well-defined heterogenous fatty mass measuring 4.5×3.5 cm in size suggesting fat necrosis (arrow: mass, transverse section). (B) Right hemicolectomy state with right lower abdominal fatty mass (arrow: mass, coronal section).

Fig. 2.

Histologic findings. (A) Macroscopic finding. The cut surface of the mass shows a brownish tan hemorrhagic color with a peripheral yellow capsule. (B) Microscopic finding shows mature adipose tissue with no evidence of malignancy (H&E, ×100).

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