low anterior resection
[low an-teer-ee-yer re-sek-shun]
a surgical approach used for some cancers in the upper third of the rectum, close to where it connects to the colon. The incision (cut) is made through the abdomen (belly) only, and the cancer is removed along with a margin (edge) of normal tissue, lymph nodes, and fatty and fibrous tissue around the rectum. The colon is re-attached to the part of the rectum that is left so that a colostomy is not needed. See also colo-anal anastomosis, colon, colostomy, lymph node, rectum, surgical margin.