Hemicolectomy (removal of part of the colon)

Hemicolectomy is the removal of part of the colon, the large intestine. A right hemicolectomy removes the right colon (with the end of the small intestine), while a left hemicolectomy or sigmoidectomy removes the left part, closest to the rectum. The two remaining ends are then joined (anastomosis) to restore bowel continuity. In most cases the operation is performed laparoscopically: the surgeon works through four or five small incisions and removes the segment through a slightly larger incision, often low down and discreet. For cancer, the segment is removed with its blood vessels and lymph nodes, which are examined under the microscope. Open surgery remains useful in some situations. The main indications are colon cancer and polyps that cannot be removed during colonoscopy, complicated or recurrent diverticulitis, and some inflammatory diseases (Crohn's disease). For cancer, the case is discussed at a multidisciplinary team meeting, which also decides on any chemotherapy after surgery. At Clinique Pasteur Tunis, hemicolectomy follows an enhanced recovery protocol: suitable preparation, early mobilisation and early eating, for a return home within a few days when everything goes smoothly. Colonoscopy and CT scanning can be performed on site.