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Clinicopathological Analysis of Hepatocellular Adenoma According to New Bordeaux Classification: Report of Eight Korean Cases
Korean Journal of Pathology ; : 411-417, 2013.
Article in English | WPRIM | ID: wpr-114870
ABSTRACT

BACKGROUND:

Hepatocellular adenoma (HCA) is a rare benign tumor of the liver. A subtype classification of HCA (hepatocyte nuclear factor 1alpha [HNF1alpha]-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. HNF1alpha-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 HNF1alpha 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.
Subject(s)

Full text: Available Index: WPRIM (Western Pacific) Main subject: Serum Amyloid A Protein / Adenoma, Liver Cell / Beta Catenin / Fatty Acid-Binding Proteins / Hepatocyte Nuclear Factor 1-alpha / Glutamate-Ammonia Ligase / Amyloid / Liver Type of study: Observational study / Prognostic study Language: English Journal: Korean Journal of Pathology Year: 2013 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Main subject: Serum Amyloid A Protein / Adenoma, Liver Cell / Beta Catenin / Fatty Acid-Binding Proteins / Hepatocyte Nuclear Factor 1-alpha / Glutamate-Ammonia Ligase / Amyloid / Liver Type of study: Observational study / Prognostic study Language: English Journal: Korean Journal of Pathology Year: 2013 Type: Article