Hepatocellular Adenomas Associated with Hepatic Granulomas: Experience in Five Cases

We present five cases in whom two rare entities were simultaneously found within the liver, i.e. hepatocellular adenomas (HCAs) and granulomas. Coexistence of both entities confuses diagnosis. Our aim is to disclose the association between HCA and hepatic granulomas. Five patients presented with HCA...

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Main Authors: Matthanja Bieze, Paulette Bioulac-Sage, Joanne Verheij, Charles Balabaud, Christophe Laurent, Thomas M. van Gulik
Format: Article
Language:English
Published: Karger Publishers 2012-10-01
Series:Case Reports in Gastroenterology
Subjects:
Online Access:http://www.karger.com/Article/FullText/343434
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author Matthanja Bieze
Paulette Bioulac-Sage
Joanne Verheij
Charles Balabaud
Christophe Laurent
Thomas M. van Gulik
author_facet Matthanja Bieze
Paulette Bioulac-Sage
Joanne Verheij
Charles Balabaud
Christophe Laurent
Thomas M. van Gulik
author_sort Matthanja Bieze
collection DOAJ
description We present five cases in whom two rare entities were simultaneously found within the liver, i.e. hepatocellular adenomas (HCAs) and granulomas. Coexistence of both entities confuses diagnosis. Our aim is to disclose the association between HCA and hepatic granulomas. Five patients presented with HCA for which they underwent resection. During laparotomy or at pathological examination, granulomas were found in tumorous and non-tumorous tissue. No specific cause for the granulomas was found. Immunohistochemistry showed overexpression of C-reactive protein and serum amyloid A in 4/5 patients, classifying these lesions as inflammatory HCA. HCA and especially the inflammatory subtype may cause formation of granulomas in (peri-)tumorous tissue as a local response to persistent inflammation and/or the presence of a tumor. Both HCA and hepatic granulomas have also been associated with oral contraceptive use. In conclusion, HCAs associated with hepatic granulomas derive from a local response to (inflammatory) HCA or neoplasm, chronic use of oral contraceptives, or a combination of these factors.
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spelling doaj.art-df8508d6b9ae4ca9a32f4ae319cf13c62022-12-22T03:31:55ZengKarger PublishersCase Reports in Gastroenterology1662-06312012-10-016367768310.1159/000343434343434Hepatocellular Adenomas Associated with Hepatic Granulomas: Experience in Five CasesMatthanja BiezePaulette Bioulac-SageJoanne VerheijCharles BalabaudChristophe LaurentThomas M. van GulikWe present five cases in whom two rare entities were simultaneously found within the liver, i.e. hepatocellular adenomas (HCAs) and granulomas. Coexistence of both entities confuses diagnosis. Our aim is to disclose the association between HCA and hepatic granulomas. Five patients presented with HCA for which they underwent resection. During laparotomy or at pathological examination, granulomas were found in tumorous and non-tumorous tissue. No specific cause for the granulomas was found. Immunohistochemistry showed overexpression of C-reactive protein and serum amyloid A in 4/5 patients, classifying these lesions as inflammatory HCA. HCA and especially the inflammatory subtype may cause formation of granulomas in (peri-)tumorous tissue as a local response to persistent inflammation and/or the presence of a tumor. Both HCA and hepatic granulomas have also been associated with oral contraceptive use. In conclusion, HCAs associated with hepatic granulomas derive from a local response to (inflammatory) HCA or neoplasm, chronic use of oral contraceptives, or a combination of these factors.http://www.karger.com/Article/FullText/343434LiverHepatocellular adenomaHepatic granulomaBenignOral contraceptivesInflammation
spellingShingle Matthanja Bieze
Paulette Bioulac-Sage
Joanne Verheij
Charles Balabaud
Christophe Laurent
Thomas M. van Gulik
Hepatocellular Adenomas Associated with Hepatic Granulomas: Experience in Five Cases
Case Reports in Gastroenterology
Liver
Hepatocellular adenoma
Hepatic granuloma
Benign
Oral contraceptives
Inflammation
title Hepatocellular Adenomas Associated with Hepatic Granulomas: Experience in Five Cases
title_full Hepatocellular Adenomas Associated with Hepatic Granulomas: Experience in Five Cases
title_fullStr Hepatocellular Adenomas Associated with Hepatic Granulomas: Experience in Five Cases
title_full_unstemmed Hepatocellular Adenomas Associated with Hepatic Granulomas: Experience in Five Cases
title_short Hepatocellular Adenomas Associated with Hepatic Granulomas: Experience in Five Cases
title_sort hepatocellular adenomas associated with hepatic granulomas experience in five cases
topic Liver
Hepatocellular adenoma
Hepatic granuloma
Benign
Oral contraceptives
Inflammation
url http://www.karger.com/Article/FullText/343434
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AT joanneverheij hepatocellularadenomasassociatedwithhepaticgranulomasexperienceinfivecases
AT charlesbalabaud hepatocellularadenomasassociatedwithhepaticgranulomasexperienceinfivecases
AT christophelaurent hepatocellularadenomasassociatedwithhepaticgranulomasexperienceinfivecases
AT thomasmvangulik hepatocellularadenomasassociatedwithhepaticgranulomasexperienceinfivecases