Lower GI Bleed - Differential Diagnosis Algorithm • Structural: Diverticulosis, Hemorrhoids, Post-polypectomy, Polyps & malignancy, Anal fissure, Aortoenteric fistula, Colonic and rectal ulcer, Meckel's diverticulum • Vascular: Acquired/sporadic (angiodysplasia, colonic/rectal varices), Congenital/systemic (CREST, HHT), Tumors (hemangiomas, Kaposi sarcoma) • Inflammatory: Ischemic colitis, IBO, Infectious colitis, Radiation colitis/proctitis Matthew Ho, MD PhD @MatthewHoMD #Lower #GI #Bleed #LGIB #GIBleed #Differential #Diagnosis #Algorithm #gastrointestinal #gastroenterology
