GPT and Hepatitis: In the mesohepatectomy group, 6 patients had grade A liver function and 12 patients had grade B; in the hemihepatectomy group, 8 patients had grade A liver function and 15 patients with grade B. There was no significant difference in age, sex, liver function (Child‒Pugh), preoperative bilirubin, planned resection liver volume, hepatitis, preoperative ALT, preoperative AST, preoperative ALP, CA199, or percutaneous transhepatic biliary drainage (PTBD) between the patients who underwent the two surgical methods (all P > 0.05, Table 1).