PET-avid hepatocellular adenomas: Incidental findings associated with HNF1-alpha mutated lesions Journal Article


Authors: Lee, S. Y.; Kingham, T. P.; LaGratta, M. D.; Jessurun, J.; Cherqui, D.; Jarnagin, W. R.; Kluger, M. D.
Article Title: PET-avid hepatocellular adenomas: Incidental findings associated with HNF1-alpha mutated lesions
Abstract: Background: Hepatocellular adenoma (HCA) is the second most common benign liver neoplasm and occurs predominantly in women in their reproductive years. Positron emission tomography (PET) using [18F] fluorodeoxyglucose (FDG) is commonly used in cancer staging, surveillance and evaluation of treatment response. PET-avid HCA are rare and can be falsely interpreted as malignancies. Methods A retrospective review of four institutions' database was performed to identify the PET-avid HCAs with clinico-pathological correlation. Results: Nine patients with histological proven PET-avid HCA was identified. Eight out of 9 patients were female with a median age at diagnosis of 44 years. All patients' tumors with available histological subtyping (8/8) were HNF1-Q mutated and had no inflammatory changes; 6 out the 9 lesions had prominent (>50%) steatotic changes. Conclusion: Hepatocellular adenomas, specifically the HNF1-ɑ subtype, can cause false-positive PET findings when seeking to identify malignancy. Concomitantly, PET-CT may have the potential to identify the HCA histopathologic variant with the lowest malignant and hemorrhagic potential. © 2015 International Hepato-Pancreato-Biliary Association Inc.
Journal Title: HPB
Volume: 18
Issue: 1
ISSN: 1365-182X
Publisher: Elsevier Science, Inc.  
Date Published: 2016-01-01
Start Page: 41
End Page: 48
Language: English
DOI: 10.1016/j.hpb.2015.07.001
PROVIDER: scopus
PMCID: PMC4750225
PUBMED: 26776850
DOI/URL:
Notes: Article -- Export Date: 2 August 2016 -- Source: Scopus
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  1. William R Jarnagin
    903 Jarnagin
  2. T Peter Kingham
    609 Kingham
  3. Ser Yee Lee
    9 Lee