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.
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