The sigmoid colon is the last section of the bowel — the part that attaches to the rectum. It pushes feces along the bowel tract. It’s about a foot and a half long (around 40 centimeters) and is ...

The sigmoid vein, also called the vena sigmoideus, refers to one group of sigmoid veins. These veins are tributaries of the inferior mesenteric vein, which is a tributary of the hepatic portal vein.

A redundant or tortuous colon is an abnormally long colon that cannot fit inside the body without looping or twisting. There is no obvious cause, but it can lead to complications and gastrointestinal ...

A colonoscopy technique involving repeat intubation of the sigmoid colon significantly improves detection of adenomas compared with conventional colonoscopy evaluations, new research showed. “After ...