Fig. 3.

A 58-year-old man with a conventional (hypervascular) HCC (white arrows) and an early HCC (yellow arrow). A small nodule was demonstrated as hypoattenuation (lack of portal flow) on CT imaging during arterioportography (a) and hyperattenuation (increased arterial flow) on CT imaging during hepatic arteriography (b). These findings are typical for a conventional (hypervascular) HCC. No additional nodule was not seen on these images. The conventional HCC showed hypervascularity on the hepatic arterial-dominant phase image (c) and hypointensity on the hepatocyte imaging (d) of the EOB-MRI. On hepatocyte imaging alone, a small hypointense nodule was demonstrated. The nodule was finally proven to be an early HCC based on surgicopathological examination.