Flexible sigmoidoscopy. This is similar to a colonoscopy, except your doctor will only explore your rectum and s-shaped sigmoid colon – both of which are located at the lower end of your colon.

Griffin was 44 when doctors discovered that a 4.3-centimeter tumor had broken through the wall of her sigmoid colon, the part of the large intestine that connects to the rectum.

This article was originally published with the title “The Origin of the Sigmoid Flexure and the Appendicula Vermiformis of the Human Colon” inSA Supplements Vol. 35 No. 908supp(May 1893), p ...