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Clinicopathological Analysis of Hepatocellular Adenoma According to New Bordeaux Classification: Report of Eight Korean Cases

Authors
Kim, HyunchulJang, Ja-JuneKim, Dong-SikYeom, Beom WooWon, Nam Hee
Issue Date
10월-2013
Publisher
KOREAN SOCIETY PATHOLOGISTS
Keywords
Adenoma, liver cell; Subtype; Hepatocyte nuclear factor 1-alpha; Beta catenin; Serum amyloid A protein
Citation
KOREAN JOURNAL OF PATHOLOGY, v.47, no.5, pp.411 - 417
Indexed
SCIE
SCOPUS
KCI
Journal Title
KOREAN JOURNAL OF PATHOLOGY
Volume
47
Number
5
Start Page
411
End Page
417
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/101996
DOI
10.4132/KoreanJPathol.2013.47.5.411
ISSN
1738-1843
Abstract
Background: Hepatocellular adenoma (HCA) is a rare benign tumor of the liver. A subtype classification of HCA (hepatocyte nuclear factor 1 alpha [HNF1 alpha]-mutated, beta-catenin-mutated HCA, inflammatory HCA, and unclassified HCA) has recently been established based on a single institutional review of a HCA series by the Bordeaux group. Methods: We used histologic and immunohistochemical parameters to classify and evaluate eight cases from our institution. We evaluated the new classification method and analyzed correlations between our results and those of other reports. Results: Seven of our eight cases showed histologic and immunohistochemical results consistent with previous reports. However, one case showed overlapping histologic features, as previously described by the Bordeaux group. Four cases showed glutamine synthetase immunohistochemical staining inconsistent with their classification, indicating that glutamine synthetase staining may not be diagnostic for beta-catenin-mutated HCA. HNF1 alpha-mutated HCA may be indicated by the absence of liver fatty acid binding protein expression. Detection of amyloid A may indicate inflammatory HCA. HCA with no mutation in the HNF1 alpha or beta-catenin genes and no inflammatory protein expression is categorized as unclassified HCA. Conclusions: Although the new classification is now generally accepted, validation through follow-up studies is necessary.
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