Inclusion Criteria:  solitary nodule; tumor adjacent to the main trunk of hepatic vein, cava vena, or to the major branch of portal vein (including the lobar branch at least); macro-vascular negative; no previous treatment before surgery; no previous hepatic surgery; Child-Pugh score A for hepatic function.  Exclusion Criteria:  spontaneous rupture; pathologically proved positive resection margin; severe cirrhosis with hypersplenism or esophageal and gastric varices; 4-weeks postoperative examination revealed α-fetal protein(AFP) still positive or new lesion in remnant liver; postoperative complications required a secondary operation or more than 3 weeks'recovery from surgery.