Today, we bring you a case of “transverse colon (near hepatic flexure) cancer”, so that you can better understand the current situation, symptoms, diagnosis, surgery and related information of colon cancer. As we all know, the incidence and mortality rate of colon cancer are very high, and the trend is still increasing in recent years. The cause of colon cancer is the result of multiple factors: genetics, environment, diet and so on, and colon cancer is getting younger, we have met many colon cancer patients in their 30s and even young people in their 20s. Colon cancer is often diagnosed with unexplained black stool, abdominal pain, anemia, abdominal lumps, etc. as the initial symptoms, which lack specificity, so when diagnosed, they are at a late stage of the disease. Some patients even choose some unscientific methods to deal with the disease, which often delay the treatment and make the disease deteriorate further. We hope that through this lecture, when people or friends around us encounter similar diseases, they can respond more calmly and deal with them actively. The patient, 68 years old, came to the outpatient clinic with “weakness, abdominal distension and black stool for 2 months”. 2 months ago, there was no obvious cause for weakness, abdominal distension and black stool, no other uncomfortable symptoms, and he went to the hospital for CT examination, which suggested transverse colon occupancy and possible colon cancer; further examination by colonoscopy suggested transverse colon occupancy, and pathology confirmed that it was colon cancer. Physical examination in the outpatient clinic: clear, mental, mild anemia, flat and soft abdomen, no mass and pressure pain, no obvious abnormality in anal examination, and no blood stained finger sleeve withdrawal. After careful questioning of the medical history, we learned that the patient had been suffering from hepatitis B and cirrhosis for more than 20 years and was positive for syphilis, both of which had not received regular treatment. After admission to the hospital to improve routine blood, liver and kidney function, tumor markers and other related tests, red blood cell count 3.50↓×1012/L hemoglobin 67↓g/L, albumin 32↓g/L glutathione transaminase 15IU/L glutathione transaminase 17IU/L. According to the above information, after consultation with the team doctors, the patient was considered to have a clear diagnosis of transverse colon cancer, with indications for surgery, but unlike other patients The patient was suffering from cirrhosis, moderate anemia and hypoproteinemia, but the liver function was still normal, so we decided to give a small amount of multiple transfusions to improve the anemia and albumin support to correct the hypoproteinemia, and monitor the patient’s liver and kidney function at the same time. After excluding the contraindication to surgery, an expanded radical surgery for L-right hemicolectomy was performed on 2015-03-25. The mass was located in the middle part of the transverse colon, partially invading the plasma membrane, and the intermesenteric and mesenteric vascular roots were enlarged with multiple hard lymph nodes. The postoperative specimen showed that the mass was about 150px in diameter, ulcerated and proliferating, and wrapped around the intestinal canal. 5 “vascular root lymph nodes”, 2 “interstitial lymph nodes” and 6 “parametrial lymph nodes” did not show cancer metastasis; 7 other villous tubular adenomas were seen. The pathological stage of the patient was stage IIIA. After the operation, the patient continued to receive symptomatic treatment such as rehydration, anti-inflammation, nutrition, etc., routine drug changes and close attention to the progress of the patient’s condition, after which the patient recovered well, with good wound healing and no significant discomfort, and was discharged on April 7. After discharge, the patient was instructed to pay attention to better nutrition, treatment of hepatitis B, syphilis and other diseases, and 1 month postoperative outpatient follow-up to determine further treatment modalities. The “L-right hemicolectomy” is based on the principle of total mesenteric resection (CME), which, in layman’s terms, can “peel” the tumor more cleanly and bring better prognosis for patients! At the same time, laparoscopy as a minimally invasive method, with the maturity of laparoscopic technology and various equipment advances, it has the unique advantages: less surgical damage, less bleeding, less patient pain, faster recovery, early postoperative feeding and quicker discharge. Laparoscopic complete mesocolic excision (CME) with medial access for right-hemi colon cancer: feasibility and technical strategies”, published by Dr. Bo Feng, is the international The first to demonstrate that laparoscopic CME is feasible and has the same long-term prognosis as open surgery.