Applying criteria for hepatocellular neoplasm of uncertain malignant potential reclassifies more than half of hepatocellular adenomas
Annals of Diagnostic Pathology, ISSN: 1092-9134, Vol: 55, Page: 151833
2021
- 4Citations
- 3Captures
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Metrics Details
- Citations4
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- Readers3
Article Description
Hepatocellular adenoma (HCA) is a benign well-differentiated hepatocellular neoplasm that can be difficult to distinguish from well-differentiated hepatocellular carcinoma (HCC). The term “well-differentiated hepatocellular neoplasm of uncertain malignant potential” (HUMP) has been proposed for neoplasms resembling HCAs, but arising in atypical clinical situations (in females over 50 years old or under 15, in males, with anabolic steroid use, or in some congenital conditions), and/or with atypical pathological features (focal cytological/architectural atypia, β-catenin activation, or focal reticulin loss) insufficient for an unequivocal diagnosis of HCC. This study evaluated HUMP criteria on 42 previously diagnosed HCAs from 33 patients. Twenty-six (62%) masses from 21 patients were classified as HUMPs. Eleven (42%) had focal cytological atypia, and two (8%) had focal architectural atypia. Four (15%) showed focal reticulin loss. Five (19%) showed evidence of β-catenin activation. Four (12%) HUMP patients were male. In this series, HUMP did not correlate with an increased rate of synchronous or metachronous HCC compared to HCA. Clinical colleagues may not accept such a high rate of tumors placed in a category of “uncertain malignant potential”. Additional study is warranted to refine criteria for designating well-differentiated hepatocellular neoplasms as of uncertain malignant potential.
Bibliographic Details
http://www.sciencedirect.com/science/article/pii/S1092913421001337; http://dx.doi.org/10.1016/j.anndiagpath.2021.151833; http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85115944916&origin=inward; http://www.ncbi.nlm.nih.gov/pubmed/34597957; https://linkinghub.elsevier.com/retrieve/pii/S1092913421001337; https://dx.doi.org/10.1016/j.anndiagpath.2021.151833
Elsevier BV
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