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KMID : 0359020070350030205
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Korean Journal of Gastrointestinal Endoscopy
2007 Volume.35 No. 3 p.205 ~ p.209
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A Case of Autoimmune Pancreatitis Diagnosed by Immunohistochemical Staining of IgG4
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Moon Tae-Gun
Lee Kyu-Taek
Kim Hoi-Jin
Lee June-Sang
Ha Jung-Su
Kang Pung
Lee Jong-Kyun
Kim Jae-Jun
Rhee Jong-Chul
Jang Kee-Taek
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Abstract
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Autoimmune pancreatitis is a distinct entity with characteristic morphological, histological and clinical features. Since the first report in 1961, there have been many reports on autoantibodies associated with autoimmune pancreatitis. Lymphoplasmacytic infiltration with fibrosis is the characteristic histological feature of autoimmune pancreatitis. Elevation of immunoglobulin G4 (IgG4), a subtype of IgG, can be seen in autoimmune pancreatitis. A few reports of autoimmune pancreatitis based on immunostaining of IgG4 have been published, but no reports have been published in Korea. We present here the first report of autoimmune pancreatitis, based on an increased serum IgG4 level and plasma cell infiltration that showed IgG4 positivity by immunohistochemical staining of the major papilla. (Korean J Gastrointest Endosc 2007;35:205-209)
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KEYWORD
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Autoimmune pancreatitis, Immunoglobulin G4
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