A volvulus is an abnormal twisting of part of the large or small intestine. It can stem from problems with the structure of the colon, constipation, and other health issues. It is a medical emergency ...

THE incidence of sigmoidal volvulus in the United States is so low that few surgeons acquire great experience in dealing with it. It is reported by most authors as ranging between 1 and 4 per cent of ...

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 ...