Image-enhanced endoscopy: How far do we need to go?

Flat tumors and laterally spreading tumors (LSTs) have greater malignant potential than polypoid lesions and are harder to detect during colonoscopy.1,2 Yet, their detection and detection of sessile serrated polyps (SSPs) continue to be a challenge. Tandem colonoscopy studies showed that 1 in 4 adenomas (particularly flat ones) could be missed during colonoscopy.3 When missed, they can lead to cancers. Close to 60% of postcolonoscopy colorectal cancers were attributed to missed lesions during prior colonoscopy.

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