The Yield of Flexible Sigmoidoscopy and Double-Contrast Barium Enema in the Diagnosis of Neoplasms in the Large Bowel in Patients with a Positive Hemoccult Test

Abstract

This approach-screening by FS and DCE, and selective use of colonoscopy in case of abnormalities-leads to the diagnosis of significant colonic tumors (larger adenomas and cancers) in 17.7% of cases; only two of eighty-three cancers (2.4%) were overlooked with this method.