Inflammatory Pseudotumors of the Pancreas and Liver with Infiltration of IgG4-Positive Plasma Cells
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概要
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Recently, it has been reported that autoimmune pancreatitis (AIP) can be complicated with various extrapancreatic lesions. Here, we report a very rare case of pancreatic and hepatic inflammatory pseudotumor (IPT) with the infiltration of IgG4-positive plasmacytes. The patient showed pancreatic and hepatic masses with elevated levels of serum IgG4. Endoscopic retrograde cholangiopancreatography revealed narrowing of the intrapancreatic bile duct. Fluorine-18fluorodeoxyglucose positron emission tomography suggested pancreatic cancer with hepatic metastasis. Histopathologic findings showed fibrosis and infiltration of IgG4-positive plasmacytes, suggesting IPT. The present case suggests a possible common mechanism in the development of AIP and IPT of the liver.
著者
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Okazaki Kazuichi
Third Department Of Internal Medicine Division Of Gastroenterology And Hepatology Kansai Medical Uni
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IKEURA TSUKASA
Third Department of Internal Medicine, Kansai Medical University
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SHIMATANI MASAAKI
Third Department of Internal Medicine, Kansai Medical University
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Takaoka Makoto
Third Department Of Internal Medicine Kansai Medical University
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Uchida Kazushige
Third Department Of Internal Medicine Division Of Gastroenterology And Hepatology Kansai Medical Uni
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Shimatani Masaaki
Third Department Of Internal Medicine Kansai Medical University
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Matsushita Mitsunobu
Third Department Of Internal Medicine Kansai Medical University
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Ikeura Tsukasa
Third Department Of Internal Medicine Kansai Medical University
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Takai Soichiro
Department Of Surgery Kansai Medical University
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Satoi Sohei
Department Of Surgery Kansai Medical University
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Ashida Kiyoshi
Department Of Gastroecnterlogy Osaka Saiseikai Nakatsu Hospital
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Miyoshi Hideaki
Third Department of Internal Medicine, Kansai Medical University
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Hachimine Daisaku
Third Department of Internal Medicine, Kansai Medical University
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