Approach to the Patient With Hematochezia Thomas G. Cotter, MD, Niamh S. Buckley, Conor G. Loftus, MD  Mayo Clinic Proceedings  Volume 92, Issue 5, Pages 797-804 (May 2017) DOI: 10.1016/j.mayocp.2016.12.021 Copyright © 2017 Mayo Foundation for Medical Education and Research Terms and Conditions

Figure Five-step approach to the patient with hematochezia. Abbreviations: AEF = aortoenteric fistula; AVM = arteriovenous malformation; BRBPR = bright red blood per rectum; CD = Crohn disease; CI = colon ischemia; CRC = colorectal cancer; CT = computed tomography; DDx = differential diagnosis; DRE = digital rectal examination; EGD = esophagogastroduodenoscopy; Ext = external; GI = gastrointestinal; GIST = gastrointestinal stromal tumor; IBD = inflammatory bowel disease; Int = internal; Ix = investigation; Mgt = management; PUD = peptic ulcer disease; SB = small bowel. aShould be considered in all patients presenting with hematochezia. Mayo Clinic Proceedings 2017 92, 797-804DOI: (10.1016/j.mayocp.2016.12.021) Copyright © 2017 Mayo Foundation for Medical Education and Research Terms and Conditions