Fig. 3.

42-year-old man with hepatocellular carcinoma.

A. Axial CT scan shows small subtle enhancing lesion (arrowhead) in right lobe of liver. Wash-out of this nodule is equivocal on delayed image. B. Axial image of C-arm cone-beam CT shows subtle nodular enhancing lesion (arrowhead). This lesion was treated by iodized oil emulsion. C. Unenhanced CT scan obtained immediately after chemoembolization shows no nodular accumulation of iodized oil. During 2-year follow-up, this subtle nodule has persisted on follow-up CT scan without morphological change, which was thought to be benign arterioportal shunt.