The descending colon is the third main section and connects the transverse colon to the sigmoid colon. It starts after the splenic flexure, or bend, and ends as it joins the sigmoid colon.

The sigmoid colon is the most common location. It is a surgical emergency, as tissue death and gangrene may follow. The biggest risk factor for volvulus is chronic constipation, ...

The lumen in the normal sigmoid colon has an appreciably smaller diameter and a higher motor activity than other areas of the colon. 9 However, increased motor activity is related to muscular ...

Typically, the diameter of a healthy adult’s rectum and sigmoid colon (the S-shaped region of the colon closest to the rectum) is in the range of five to six centimeters or so.

But they’re commonly found in the lower-left side of your large intestine called the sigmoid colon. Ulcerative Colitis and Diverticulitis: Similarities and Differences.

Wednesday, May 28, 2025. News & Perspective Drugs & Diseases CME & Education Video Decision Point close ...

Abdominoperineal resection: usually performed for a lower rectal or anal cancer. Involves the surgical removal of the anus, rectum, and sigmoid colon, along with associated lymph nodes, resulting ...

Tuesday, February 11, 2025. News & Perspective Drugs & Diseases CME & Education Video Decision Point close ...