Patient Guo, female, 72 years old, liver metastasis of colon cancer, after multidisciplinary consultation, preoperative chemotherapy was performed for 3 times, the tumor shrunk significantly, and sigmoid colon cancer resection + left hemihepatectomy was performed laparoscopically in one stage in September 2014, and the patient recovered smoothly. Zhang Bin, Department of General Surgery, Henan Cancer Hospital