Occult and Lower Gastronintestinal Bleed - Differential Diagnosis Algorithm Occult (Stool + Occult blood and/or iron deficiency anemia) • Colorectal cancer • Angiodysplasia (colon or small bowel) • Occult UGI bleeding (ulcer, esophagitis, gastritis, cancer) • Other: small bowel tumors, asymptomatic IBD Overt Bleeding In Patient • RULE OUT BRISK Upper GI bleed, Diverticular bleed, • Acute colitis (ischemia, infectious, inflammatory), • Small bowel source (e.g. Meckel's, tumor), • Angiodysplasia Out Patient • Perianal Disease (most common) • Inflammatory Bowel Disease • Colorectal Cancer #Occult #LowerGIBleed #Gastronintestinal #Differential #Diagnosis #Algorithm #Causes
