Location of Adenomas Missed by Optical Colonoscopy

Figure 6. Antegrade endoluminal view (that is, looking distally toward rectum) from virtual colonoscopy indicates the portions of colonic mucosa that were visualized during retrograde flight toward the cecum by “painting” the surface green. The unpainted regions involving the proximal aspects of colonic folds are readily evaluated during antegrade flight on virtual colonoscopy. These regions, however, are the most common sites for missed adenomas at optical colonoscopy because of its unidirectional nature.
Figure 6. Antegrade endoluminal view (that is, looking distally toward rectum) from virtual colonoscopy indicates the portions of colonic mucosa that were visualized during retrograde flight toward the cecum by “painting” the surface green. The unpainted regions involving the proximal aspects of colonic folds are readily evaluated during antegrade flight on virtual colonoscopy. These regions, however, are the most common sites for missed adenomas at optical colonoscopy because of its unidirectional nature. Potential colonoscopic “blind spots.”

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  1. Ann Intern Med September 7, 2004 vol. 141 no. 5 352-359
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