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Images of US and CE US for case 1. This nodule in case 1 was diagnosed as HCC histopathologically, assigned to LR-M by CE US LI-RADS with rim arterial phase hyperenhancement and portal venous phase early washout (time of washout was 52 s), while diagnosed as HCC by U model (U-score = 0.927839594). a Image of nodule on US. b–d Images of nodule in arterial, portal venous and late phase on CE US
