Upper and Lower Causes of GI Bleed Upper: • Esophagus: Tear (Mallory Weiss, Boerhaave syndrome), Variceal, Esophagitis, Cancer • Stomach: PUD, (NSAIDs, Hpylori), Gastritis, Variceal, Cancer, AVM, GAVE, Dieulafoy lesion • Duodenum: PUD, Duodenitis, AVM, Cancer, telangectasia • Other: Aortoenteric fistula Lower: • Bowel: Diverticular, Cancer, Polyps • Vessels: AVM, Hemorrhoids, Rectal varices, Telangectasias, Kaposi sarcoma, Mesenteric ischemia • Inflammatory: Ischemic colitis, Infectious colitis, UC/Chrons (IBD), Radiation CMC IM Residency @CMC_IM #Upper #Lower #GIBleed #differential #diagnosis #Causes #algorithm
