Isolated Liver Hilar Infiltration by IgG4 Inflammation Mimicking Cholangiocarcinoma

IgG4-related disease represents a heterogeneous group of disease characterized by infiltration of various tissues by IgG4 plasmocytes. In case of liver infiltration, this condition classically mimics primary sclerosing cholangitis or multifocal cholangiocarcinoma due to inflammation that preferentia...

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Main Authors: Laurent Bochatay, Pietro Majno, Emiliano Giostra, Jean Louis Frossard
Format: Article
Language:English
Published: Karger Publishers 2016-10-01
Series:Case Reports in Gastroenterology
Subjects:
Online Access:http://www.karger.com/Article/FullText/448989
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author Laurent Bochatay
Pietro Majno
Emiliano Giostra
Jean Louis Frossard
author_facet Laurent Bochatay
Pietro Majno
Emiliano Giostra
Jean Louis Frossard
author_sort Laurent Bochatay
collection DOAJ
description IgG4-related disease represents a heterogeneous group of disease characterized by infiltration of various tissues by IgG4 plasmocytes. In case of liver infiltration, this condition classically mimics primary sclerosing cholangitis or multifocal cholangiocarcinoma due to inflammation that preferentially affects the intra- and extrahepatic bile duct. Diagnostic criteria have recently been reviewed in order to better define the disease and help physicians make the diagnosis. Herein, we present the case of a patient who died after liver surgery for suspected cholangiocarcinoma that finally turned out to be IgG4-associated liver disease, a condition being out of current consensual criteria. The patient presented with progressive cholestasis identified by MR cholangiography as an isolated hilar mass responsible for dilatation of the left and right intrahepatic bile duct suspicious for a Klatskin tumor. The IgG4 blood level was normal as was biliary cytology. The patient underwent right portal embolization followed by right extended hepatectomy. Pathologic examination found no tumor but intense fibrosclerotic infiltration with a marked inflammatory infiltrate characterized by IgG4-positive plasmocytes. Despite immunosuppressive treatment, cholestasis was never controlled and successive biopsies of the remaining liver showed progressive cholestasis, liver infiltrate and no bile duct regeneration. The patient finally presented an upper gastrointestinal hemorrhage leading to death 4 months after hepatectomy and appropriate immunosuppressive therapy.
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spelling doaj.art-187cffec0c5b42bfaf20381e4a689da82022-12-21T18:33:00ZengKarger PublishersCase Reports in Gastroenterology1662-06312016-10-0110351251710.1159/000448989448989Isolated Liver Hilar Infiltration by IgG4 Inflammation Mimicking CholangiocarcinomaLaurent BochatayPietro MajnoEmiliano GiostraJean Louis FrossardIgG4-related disease represents a heterogeneous group of disease characterized by infiltration of various tissues by IgG4 plasmocytes. In case of liver infiltration, this condition classically mimics primary sclerosing cholangitis or multifocal cholangiocarcinoma due to inflammation that preferentially affects the intra- and extrahepatic bile duct. Diagnostic criteria have recently been reviewed in order to better define the disease and help physicians make the diagnosis. Herein, we present the case of a patient who died after liver surgery for suspected cholangiocarcinoma that finally turned out to be IgG4-associated liver disease, a condition being out of current consensual criteria. The patient presented with progressive cholestasis identified by MR cholangiography as an isolated hilar mass responsible for dilatation of the left and right intrahepatic bile duct suspicious for a Klatskin tumor. The IgG4 blood level was normal as was biliary cytology. The patient underwent right portal embolization followed by right extended hepatectomy. Pathologic examination found no tumor but intense fibrosclerotic infiltration with a marked inflammatory infiltrate characterized by IgG4-positive plasmocytes. Despite immunosuppressive treatment, cholestasis was never controlled and successive biopsies of the remaining liver showed progressive cholestasis, liver infiltrate and no bile duct regeneration. The patient finally presented an upper gastrointestinal hemorrhage leading to death 4 months after hepatectomy and appropriate immunosuppressive therapy.http://www.karger.com/Article/FullText/448989IgG4 liver diseaseCholangiocarcinomaHilar filling defect
spellingShingle Laurent Bochatay
Pietro Majno
Emiliano Giostra
Jean Louis Frossard
Isolated Liver Hilar Infiltration by IgG4 Inflammation Mimicking Cholangiocarcinoma
Case Reports in Gastroenterology
IgG4 liver disease
Cholangiocarcinoma
Hilar filling defect
title Isolated Liver Hilar Infiltration by IgG4 Inflammation Mimicking Cholangiocarcinoma
title_full Isolated Liver Hilar Infiltration by IgG4 Inflammation Mimicking Cholangiocarcinoma
title_fullStr Isolated Liver Hilar Infiltration by IgG4 Inflammation Mimicking Cholangiocarcinoma
title_full_unstemmed Isolated Liver Hilar Infiltration by IgG4 Inflammation Mimicking Cholangiocarcinoma
title_short Isolated Liver Hilar Infiltration by IgG4 Inflammation Mimicking Cholangiocarcinoma
title_sort isolated liver hilar infiltration by igg4 inflammation mimicking cholangiocarcinoma
topic IgG4 liver disease
Cholangiocarcinoma
Hilar filling defect
url http://www.karger.com/Article/FullText/448989
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AT pietromajno isolatedliverhilarinfiltrationbyigg4inflammationmimickingcholangiocarcinoma
AT emilianogiostra isolatedliverhilarinfiltrationbyigg4inflammationmimickingcholangiocarcinoma
AT jeanlouisfrossard isolatedliverhilarinfiltrationbyigg4inflammationmimickingcholangiocarcinoma