The descending colon is the third main section of the colon and connects to the transverse colon and sigmoid colon. Many health conditions can affect the descending colon, including inflammatory ...

from the anus, and the sigmoid resected for adenocarcinoma ... It seems that pneumatosis of the descending colon can be caused by proctoscopy but more often results from other, unknown conditions.

The sigmoid colon is the section of the large intestine closest to the rectum and anus. It measures around 35 to 40 centimeters (around 1.5 feet) in length and is shaped like the letter "S.

Comparison Between Patients Who had Maximum Activity in the Rectum or Sigmoid Colon and Those Who had This in the Descending Colon or Proximal Colon Inflammatory Activity in the Descending Colon ...

Severity of mucosal inflammation was evaluated using the Mayo score of endoscopic index at each location (rectum, sigmoid colon, descending colon, and the oral side of the splenic flexure ...