Korean J Med.
2013 Mar;84(3):400-404. 10.3904/kjm.2013.84.3.400.
An IgG4-Related Inflammatory Pseudotumor of the Greater Omentum
- Affiliations
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- 1Department of Internal Medicine, Pusan National University School of Medicine and Medical Research Institute, Yangsan, Korea. luckyace@hanmail.net
- KMID: 1833850
- DOI: http://doi.org/10.3904/kjm.2013.84.3.400
Abstract
- IgG4-related sclerosing disease is a novel clinical disease entity characterized by an elevated serum IgG4 concentration and tissue infiltration by IgG4-positive plasma cells. Although this disease is a novel entity, it is not rare and is present in a proportion of patients with a wide variety of diseases, including autoimmune pancreatitis, sclerosing cholangitis, retroperitoneal fibrosis, and inflammatory pseudotumor. Despite the effectiveness of steroid therapy, IgG4-related sclerosing disease is often misdiagnosed as a malignant tumor. Here, we report an inflammatory pseudotumor of the great omentum that was misdiagnosed as a malignant tumor and subject to surgical resection.
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