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Korean J Gastroenterol  <  Volume 73(1); 2019 <  Articles

Korean J Gastroenterol 2019; 73(1): 50-55  https://doi.org/10.4166/kjg.2019.73.1.50
Immunoglobulin G4 Unrelated Idiopathic Mesenteric Sclerosis
Tae Hyung Kwon, Kwang Bum Cho , Hyun Jik Lee, Sun Young Kwon1 and Yoon Suk Lee2
Departments of Internal Medicine and Pathology1, Keimyung University School of Medicine, Daegu; Division of Gastroenterology, Department of Internal Medicine, Ilsan Paik Hospital, Inje University College of Medicine2, Goyang, Korea
Correspondence to: Kwang Bum Cho, Department of Internal Medicine, Keimyung University School of Medicine, 56 Dalseong-ro, Jung-gu, Daegu 41931, Korea. Tel: +82-53-250-7088, Fax: +82-53-250-7088, E-mail: chokb@dsmc.or.kr, ORCID: https://orcid.org/0000-0003-2203-102X
Received: April 3, 2018; Revised: June 23, 2018; Accepted: June 24, 2018; Published online: January 25, 2019.
© The Korean Journal of Gastroenterology. All rights reserved.

This is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Sclerosing mesenteritis is a rare benign disease with a prevalence of 0.16-3.4% and is characterized by chronic nonspecific inflammation and extensive fibrosis in the adipose tissue of the mesentery although the exact pathogenesis is still elusive. A 65-year-old woman was referred with suspicion of an abdominal mass and biliary stones on abdominal ultrasonography and CT. Bile duct stones were confirmed by endoscopic ultrasonography and successfully treated by endoscopic retrograde cholangiography with stone removal. Furthermore, a 4.7 cm conglomerated mass on small intestinal mesentery was suspected as sclerosing mesenteritis based on the features on abdominal MRI. However, because it could not be differentiated from malignancy without histologic examination, laparoscopic excisional biopsy was performed; it showed only inflammatory cells with extensive fibrosis. Therefore, the abdominal mass was confirmed as sclerosing fibrosis and the patient was followed-up without any treatments because no mass-related symptoms accompanied the findings. Six months later, abdominal CT showed no significant change in the mass. Herein, we report a rare case of incidentally found idiopathic sclerosing mesenteritis.
Keywords: Sclerosing mesenteritis; Mesenteric panniculitis; IgG4-related disease

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