Fig. 4

A 54-year-old man with hepatocellular carcinoma with microvascular invasion (MVI). a No definite peritumoral enhancement found in the arterial phase compared with b equilibrium phase images. However, the NIC of the peritumoral layer with a 2-mm distance from the tumor margin is 0.096 mg/mL, which is higher than the cutoff value for predicting MVI of 0.082 mg/mL. c Microscopic evaluation reveals a tumor cells (circle) within the small vessel (hematoxylin-eosin stain, original magnification: × 20 and × 20)