sigmoid colon

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sigmoid colon

[′sig‚mȯid ′kō·lən]
(anatomy)
The S-shaped portion of the colon between the descending colon and the rectum.
References in periodicals archive ?
The length of the resected bowl segments for cecum/ ascending colon, sigmoid colon and rectal cancers was similar (23.
21-24) Our results are similar and show that more lymph nodes were consistently recovered from resection specimens of cecum/ascending colon and descending colon cancers, and fewer were recovered from resections of transverse colon, sigmoid colon, and rectal cancers.
For all segments of the large intestine that are either incompletely encased (ascending colon, descending colon, sigmoid colon, upper rectum) or not encased (lower rectum) by peritoneum, the radial margin is created by blunt dissection of the retroperitoneal or subperitoneal aspect, respectively, at operation.