San Diego—Endoscopists greatly overestimate the true size of the colorectal polyps they resect, according to a large study that found an almost twofold difference in their estimates versus the size of neoplasia as measured in the resected specimens.
The prospective study compared the mean polyp size estimate by the endoscopist with the actual neoplasia size within a polyp, as measured in the specimens of 2,587 polyps from 1,304 patients. According to the investigators, who presented their