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Computed tomographic colonography (CTC) was developed as a screening test for colorectal cancer. This test detects large polyps and cancers about as well as optical colonoscopy,1 suggesting that it, like currently accepted tests, can reduce colorectal cancer incidence and mortality. But unlike other colorectal cancer screening tests, CTC also visualizes the abdomen and lower thorax and finds abnormalities there too. Is this extra information an asset or a liability?
Fletcher RH, Pignone M. Extracolonic Findings With Computed Tomographic ColonographyAsset or Liability?. Arch Intern Med. 2008;168(7):685–686. doi:10.1001/archinte.168.7.685
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