Liver Imaging Reporting and Data System (LI-RADS) is a comprehensive system that provides standardization in the interpretation and reporting of observations in patients at risk of developing hepatocellular carcinoma (HCC). Computed tomography/magnetic resonance imaging (CT/MRI) LI-RADS v2018 includes 8 diagnostic categories, which reflect the probability of benignity, malignancy in general, or HCC specifically. This article reviews the diagnostic categories of CT/MRI LI-RADS v2018, highlighting the key imaging features, diagnostic criteria, and management implications.
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