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Localized IgG4-related Cholecystitis Mimicking Gallbladder Cancer
Tadahisa Inoue1, Fumihiro Okumura, Takashi Mizushima
1Department of Gastroenterology, Gifu Prefectural Tajimi Hospital, Japan.
Abstract:
We encountered a case of localized IgG4-cholecystitis mimicking gallbladder cancer with focal/segmental type1 autoimmune pancreatitis (AIP). In this case, we were unable to exclude a diagnosis of gallbladder cancer and thus performed radical cholecystectomy. Type1 AIP is often associated with gallbladder lesions, accompanied by generally diffuse, circumferential thickening of the gallbladder wall. Although localized IgG4-related cholecystitis is extremely rare, differentiating this condition from gallbladder cancer is often very difficult.
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