Gut and Liver

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Immunoglobulin G4-Related Disease Mimicking Unresectable Gallbladder Cancer

Yoon Suk Lee*, Sang Hyub Lee, Min Geun Lee*, Seung-June Lee*, Jin-Hyeok Hwang*, Eun Shin, and Yoon Jin Lee
*Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Department of Internal Medicine and Liver Research Institute, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Departments of Pathology and Radiology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
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.
Immunoglobulin G4 (IgG4)-related disease is a novel disease entity that can involve diverse organs, causing specific diseases, including autoimmune pancreatitis, sclerosing cholangitis, cholecystitis, inflammatory aortic aneurysm, and inflammatory pseudotumor. IgG4-related disease is characterized by elevated serum IgG4 concentrations, abundant IgG4 lymphoplasmacytic infiltration, and dramatic steroid responses. It is clinically important to differentiate this rare disease from primary sclerosing cholangitis and cholangiocarcinoma, because the treatment and prognosis of these two diseases are completely different. However, the preoperative diagnosis is challenging, and the disease is frequently misdiagnosed. If the serum level of IgG4 is within the normal range, the diagnosis of IgG4-related disease is more difficult. This article reports on a 59-year-old man with IgG4-related disease mimicking unresectable gallbladder cancer with normal serum IgG4 concentrations. (Gut Liver 2013;7:616-620)
Immunoglobuin G; Cholangitis, sclerosing; Gallbladder neoplasms; Cholecystitis
Gut and Liver 2013 Sep; 7(5): 616-620
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