Flat adenomas in the United Kingdom: are treatable cancers being missed?
The polyp-carcinoma hypothesis prompts colonoscopists to search only for polypoid lesions when screening for malignancy. A significant proportion of early colorectal neoplasms may therefore be missed. European colonoscopists require training in the recognition of flat elevated and depressed lesions in order to detect colorectal malignancies in their early stages.
Standard approaches do not identify physicians at risk of later impairment.