Panel A illustrates the extracolonic upper gastrointestinal polyp manifestations of FAP (Used with permission and adapted from the American Gastroenterology Association Institute's Clinical Teaching Unit 11, copyright). Fig. B is a schematic illustration of a "J-pouch", formed from the distal small intestine and attached to the anal sphincter. The shorter limb of the "J" acting as a fecal reservoir; Fig. C is an x-ray demonstration of this pouch (Figures provided by Dr. A. Deutsch, Petach Tikva and reproduced, with permission of the publishers, from reference : Rozen P, Levin B, Young GP: Who are at risk for familial colorectal cancer and how can they be managed? In Colorectal Cancer in Clinical Practice: Prevention, Early Detection and Management Edited by: Rozen P, Young GP, Levin B, Spann SJ. London, Ed 2, Taylor and Francis 2002:55-66).