The search strategy combined terms for imaging modalities ("CT," "MRI"), the primary disease ("hepatocellular carcinoma"), and various molecular and pathological subtypes (e.g., "macrotrabecular-massive," "steatohepatitic," "CK19," and "CTNNB1").<h4>Results</h4>HCC is a biologically heterogeneous malignancy with varied prognosis and sensitivity to treatment. This evidence concerns the gene KRT19 and hepatocellular carcinoma.