Source:http://linkedlifedata.com/resource/umls/id/C0227391
NCI: The S-shaped section of the colon that connects to the rectum.,NCI: The portion of the colon that connects to the descending colon above and the rectum below. (NCI),MSH: A segment of the COLON between the RECTUM and the descending colon.,NCI: The portion of the colon that connects to the descending colon above and the rectum below. (On-line Medical Dictionary)