Steatotic hepatocellular adenomas with different phenotypic subtypes: a case report.

Abstract

Hepatocellular adenomas (HCAs) are heterogeneous group of benign tumors; three pathomolecular subtypes have been identified so far: hepatocyte nuclear factor 1 α-inactivated HCA (H-HCA) (35-40%), inflammatory HCA (I-HCA) (>50%), β-catenin activated HCA (10%). Ten percent of I-HCA are also β-catenin activated. We report a rare case of three histologically confirmed steatotic HCAs of three different phenotypes: I-HCA, β-catenin activated I-HCA, and H-HCA in a 36-year-old woman. This observation outlines that in the same patient, HCA may be of different subtypes. The predisposition to develop different HCA hypothetically caused by a "benign tumorigenic field effect" may result, even rarely, in different genotypes/phenotypes such as H-HCA and I-HCA. Moreover, we illustrate the very high specificity of MR for subtyping HCA.

• Authors: N Alberti, C Castain, A Crombe, N Frulio
• Journal: Clinics and research in hepatology and gastroenterology (Clin Res Hepatol Gastroenterol) Vol. 39 Issue 2 Pg. e17-22 (Apr 2015) ISSN: 2210-741X [Electronic] France
• PMID: 25260568 (Publication Type: Case Reports, Journal Article)
• Copyright: Copyright © 2014 Elsevier Masson SAS. All rights reserved.

Topics

• Adenoma, Liver Cell (complications, genetics)
• Adult
• Fatty Liver (complications)
• Female
• Humans
• Liver Neoplasms (complications, genetics)