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Fig. 1A. —68-year-old man with hepatocellular carcinoma, arising from liver cirrhosis due to hepatitis C, and both tumorous and nontumorous arterioportal shunts. CT image obtained during arterial dominant phase shows fan-shaped enhancement periphery of hypervascular tumor located in segment VII, which was judged to be tumorous arterioportal shunt. There is another enhanced area in segment III that includes highly enhanced peripheral portal branch within it, which was considered to be nontumorous arterioportal shunt. The arterioportal shunt in segment III cannot be detected on any MR images shown here.