volume 93, issue 2, P179-182 1998
DOI: 10.1111/j.1572-0241.1998.00179.x
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William N Segal, Paul D Greenberg, Don C Rockey, John P Cello, Kenneth R McQuaid

Abstract: In patients with hematochezia, clinicians were unable to distinguish between those patients with and those without significant colonic lesions by history alone. Flexible sigmoidoscopy would have demonstrated most (95%) substantial lesions. The lesions that flexible sigmoidoscopy missed were an unlikely cause of bleeding in this small group of patients.