[Excision of mid-lower rectal carcinoma through abdomen and anogenital space]

28 men with male mid and lower rectal carcinoma were treated by dissecting sigmoid colon and rectum in the abdomen through the anogenital space, which refers to the potential coronoid space located between the deep transverse perineal muscles and anal sphincter muscles. The rectal segment was pulled out through the anogenital space to accomplish resection and anastomosis outside the pelvic cavity. Follow-up for 9-57 months showed that 26 cases (92.9%) survived without recurrence of carcinoma and 1 had local recurrence. The advantages of the procedure include clear exploration, minimal trauma, super-lower anastomoses under direct vision, good recovery of defecating function, and less contamination of pelviccavity.