An inflamed diverticulum with associated bleeding (black arrow) seen on colonoscopy. (Used with permission from Dr Nicola Simmonds, Luton and Dunstable Hospital, UK.) Source: Chapter 11. Gastrointestinal Bleeding, Maingot's Abdominal Operations, 12e Citation: Zinner MJ, Ashley SW. Maingot's Abdominal Operations, 12e; 2013 Available at: http://accesssurgery.mhmedical.com/DownloadImage.aspx?image=/data/books/zinn12/zinn12_c011f013.png&sec=41810462&BookID=531&ChapterSecID=41808788&imagename= Accessed: October 13, 2017 Copyright © 2017 McGraw-Hill Education. All rights reserved