Chromosomal Abnormalities Determined by Comparative Genomic Hybridization Are Helpful in the Diagnosis of Atypical Hepatocellular Neoplasms
Overview
Pathology
Authors
Affiliations
Aims: To explore the utility of cytogenetic abnormalities in the distinction of hepatic adenoma (HA) and well-differentiated hepatocellular carcinoma (HCC).
Methods And Results: Array-based comparative genomic hybridization (CGH) was used to determine chromosomal abnormalities in 39 hepatocellular neoplasms: 12 HA, 15 atypical hepatocellular neoplasms (AHN) and 12 well-differentiated HCC. The designation of AHN was used in two situations: (i) adenoma-like neoplasms (n = 8) in male patients (any age) and women >50 years and <15 years old; (ii) adenoma-like neoplasms with focal atypical features (n = 7). CGH abnormalities were seen in none of the HAs (0/12), eight (53%) AHNs and 11 (92%) HCCs. The number and nature of abnormalities in AHN was similar to HCC with gains in 1q, 8q and 7q being the most common. Although follow-up information was limited, recurrence and/or metastasis were observed in three AHNs (two with abnormal, one with normal CGH).
Conclusions: Adenoma-like neoplasms with focal atypical morphological features or unusual clinical settings such as male gender or women outside the 15-50 year age group can show chromosomal abnormalities similar to well-differentiated HCC. Even though these tumours morphologically mimic adenoma, they can recur and metastasize. Determination of chromosomal abnormalities can be useful in the diagnosis of AHN.
Hahn E, Putra J World J Gastroenterol. 2020; 26(19):2294-2304.
PMID: 32476794 PMC: 7243640. DOI: 10.3748/wjg.v26.i19.2294.
gene function during hepatoma cells proliferation.
Vega-Benedetti A, Saucedo C, Zavattari P, Vanni R, Royo F, Llavero F Oncotarget. 2018; 9(67):32775-32794.
PMID: 30214684 PMC: 6132347. DOI: 10.18632/oncotarget.25996.
Malignant transformation of hepatocellular adenoma.
Sempoux C, Balabaud C, Bioulac-Sage P Hepat Oncol. 2018; 1(4):421-431.
PMID: 30190977 PMC: 6095435. DOI: 10.2217/hep.14.14.
Hale G, Liu X, Hu J, Xu Z, Che L, Solomon D Mod Pathol. 2016; 29(11):1370-1380.
PMID: 27469330 PMC: 5149418. DOI: 10.1038/modpathol.2016.122.
Tornesello M, Buonaguro L, Izzo F, Buonaguro F Oncotarget. 2016; 7(18):25087-102.
PMID: 26943571 PMC: 5041890. DOI: 10.18632/oncotarget.7837.