In this live educational procedure, Dr. Armando Melani presents the case of a 70-year-old female patient with a previous history of inferior right lobectomy secondary to T2 carcinoma. In 2018, during postoperative surveillance, PET-scan showed a left colon fixation. Colonoscopy revealed a polypoid lesion located 40cm away from the anal verge. Biopsy showed severe dysplasia. Endoscopic clips were placed for marking purposes. Three additional adenomatous polyps in the right, transverse, and left colon were found and removed. Preoperative abdominal X-ray showed the presence of clips at the level of the left pelvic bone. Since colonoscopy was performed more than two weeks before surgery, intraoperative colonoscopy was used to ensure tumor location.
During the video, surgical pitfalls were highlighted, and the author showed the importance of preoperative tumor tattooing, demonstrated anatomical landmarks, and the starting point of mesenteric dissection for left colectomy at the superior mesenteric vein (IMV). Recommendations for inferior mesenteric artery (IMA) ligation, hypogastric nerve preservation, splenic flexure mobilization, stapling recommendations during colon transection, colorectal anastomosis, and means to prevent postoperative complications were provided. The value of leak test, endoscopic anastomosis evaluation, and the use of indocyanine green (ICG) were also emphasized.