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Differentiation between hepatic angiomyolipoma and hepatocellular carcinoma in individuals who are not at-risk for hepatocellular carcinoma

 Sungtae Park  ;  Myeong-Jin Kim  ;  Kyunghwa Han  ;  Jae Hyon Park  ;  Dai Hoon Han  ;  Young Nyun Park  ;  Jaehyo Kim  ;  Hyungjin Rhee 
 EUROPEAN JOURNAL OF RADIOLOGY, Vol.166 : 110957, 2023-09 
Journal Title
Issue Date
Angiomyolipoma* / diagnostic imaging ; Carcinoma, Hepatocellular* / diagnostic imaging ; Carcinoma, Hepatocellular* / pathology ; Contrast Media ; Female ; Gadolinium DTPA ; Gastrointestinal Neoplasms* ; Humans ; Leukemia, Myeloid, Acute* ; Liver Neoplasms* / diagnostic imaging ; Liver Neoplasms* / pathology ; Magnetic Resonance Imaging / methods ; Retrospective Studies ; Sensitivity and Specificity
Angiomyolipoma ; Gadoxetic acid ; Hepatocellular carcinoma ; Magnetic resonance imaging ; Necrosis
Purpose: To develop a practical methodfor differentiating hepatocellular carcinoma (HCC) from angiomyolipoma (AML) in individuals who are not at-risk for HCC.

Method: We retrospectively enrolled consecutive patients who underwent gadoxetic acid-enhanced liver magnetic resonance imaging (MRI) and pathological confirmation between January 2008 and April 2022. Patients who underwent prior treatment, those with multiple lesions, or those at-risk for HCC were excluded. The training cohort included patients with pathological confirmation between 2008 and 2019, whereas the validation cohort included the remaining cases. Independent reviews of the MRI were performed by two reviewers. Using the clinical and MRI findings, we developed AML-HCC score using Firth's logistic regression in the training cohort, and the diagnostic performance was validated in the validation cohort.

Results: Of the 206 patients, 156 were assigned to the training cohort (25 and 131 patients with AML and HCC, respectively) and 50 were assigned to the validation cohort (4 and 46 patients with AML and HCC, respectively). The AML-HCC score was defined as the sum of female (score 1), early draining vein (score 2), T2 homogeneity (score 1), necrosis or severe ischaemia (score -2), and HBP hyperintensity to spleen (score -1). When the AML-HCC score was ≥1, the sensitivity and specificity were 80% and 95% for the training cohort and 100% and 80% for the validation cohort, respectively.

Conclusions: We developed and validated an AML-HCC score to differentiate between AML and HCC in individuals who are not at-risk for HCC, and our model demonstrated good diagnostic performance.
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1. College of Medicine (의과대학) > Research Institute (부설연구소) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Pathology (병리학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Surgery (외과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Myeong Jin(김명진) ORCID logo https://orcid.org/0000-0001-7949-5402
Park, Young Nyun(박영년) ORCID logo https://orcid.org/0000-0003-0357-7967
Rhee, Hyungjin(이형진) ORCID logo https://orcid.org/0000-0001-7759-4458
Han, Kyung Hwa(한경화)
Han, Dai Hoon(한대훈) ORCID logo https://orcid.org/0000-0003-2787-7876
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