At the age of 80, Mr. Chen is a cancer patient, and a patient with three primary tumors and undergoing tumor removal for the third time. Two years ago, Mr. Chen had his first surgery at Peking University First Hospital to remove the left half of his colon and left a 20cm-long surgical incision on his left abdomen due to blood in his stool. 5 years ago, Mr. Chen had his second surgery at Peking University Hospital to remove his right kidney and left a 20cm-long surgical incision on his right waist due to blood in his urine. It is rare for a person to have two types of cancer, but Mr. Chen’s bad luck did not end here. Four months ago, Mr. Chen reviewed his colonoscopy after surgery and found two tumors in the proximal ascending colon, which were biopsied and confirmed as ascending colon cancer and transverse colon cancer. After Mr. Chen learned that he was suffering from colon cancer again, he went to many oncology hospitals and large hospitals for treatment and was told that “surgery is risky and conservative treatment is recommended”. The old man and his family did not give up the hope of surgery to cure the tumor, so they decided to come to Peking University Hospital for the third time to treat the tumor. At less than 6 o’clock, the old man’s family came to Peking University Hospital’s outpatient clinic and queued up for the number of Associate Professor Tang Qiangqiang of General Surgery. After examination, Associate Professor Tang found that in addition to the colon tumor, two masses were visible in the left lobe of the liver, the larger of which was about 5cm in diameter. Is this advanced colon cancer with liver metastasis? Associate Professor Tang said, if we want to complete the surgery for Mr. Chen, we have to consider his physical condition: 87 years old, history of two major open heart surgeries, colon cancer, suspected liver metastasis, and recent pneumonia, and also consider the risk of surgery: removing the ascending colon, transverse colon, part of the ileum and the left half of the liver. The risk of surgery is too high, so most hospitals and most doctors choose “conservative treatment”. However, Associate Professor Tang strongly believes that the old man still has a chance to remove the tumor. After the preoperative examination and multidisciplinary consultation, Associate Professor Tang performed the third tumor removal surgery for Mr. Chen, a minimally invasive surgery. Pneumoperitoneum was built, laparoscopic exploration, fine dissection and separation of adhesions under laparoscopy, followed by resection of tumor, ligation of colonic vessels, root clearance of lymph nodes, free colon, resection of right hemicolectomy and transverse colon, and intestinal anastomosis, followed by laparoscopic dissection of liver vessels, treatment of vessels, and separation of liver tissues. Thanks to the team’s cooperation, the operation was successfully completed. On the second day after the operation, the old man started to move on the floor with the assistance of nurses; on the third day after the operation, he started to ventilate and his intestinal function gradually recovered; on the seventh day after the operation, he started to eat a liquid diet. What is even more gratifying is that Mr. Chen’s postoperative pathology was not advanced colon cancer with liver metastasis, but early transverse colon cancer, mid-stage ascending colon cancer and mid-stage liver cancer, and none of the three tumors had spread, which means that the old man did not need follow-up chemotherapy, and the tumor lesions were eradicated after surgery and had a high possibility of being completely cured. Associate Professor Tang Qiang said that laparoscopic technology has been successfully extended from cholecystectomy to colorectal benign and malignant diseases and liver surgery. In addition to the minimally invasive feature, laparoscopic surgery has another advantage – it can treat multiple diseases through the operation of perforation holes, achieving the effect of treating multiple lesions in the same operation. Some patients with colon cancer combined with some benign diseases, such as gallbladder stones and uterine fibroids, can be completed through the reasonable selection of perforation holes at the same time, and some primary malignant tumors can also be removed together. In the past two years, the specialized group of gastrointestinal surgery of Peking University Hospital has completed more than 20 cases of lumpectomy with multiple abdominal tumors removed together, and treated cases of colorectal cancer combined with other abdominal malignancies such as liver cancer, bladder cancer, kidney cancer and stomach cancer.