 - Hepatoma involved in this research at complex site is located at the eighth segment of liver, the substantial depth of liver below hepatic integument adjacent to the trunk of inferior vena cava, hepatic vein and portal vein. The tumor is located at hepatic caudate lobe. The maximal diameter or3m, AJCCUICCTNM stage is stage II and above. Lesions are determined by three senior hepatobiliary experts independently, therefore radical resection is possible. There is no possibility of extra-hepatic metastasis and tumor thrombus of portal vein, hepatic vein, vena cava and bile duct. 