A morphologic analysis of sessile serrated polyps observed during routine colonoscopy (with video).

Background: Proximal colorectal cancer may arise from sessile serrated polyps (SSPs), which are often inconspicuous during colonoscopy. The gross morphologic characteristics of SSPs have not been systematically described, and this omission may contribute to colonoscopists overlooking them.

Objectives: To analyze the gross morphologic characteristics of SSPs detected during routine colonoscopy.

The detection of premalignant colon polyps during colonoscopy is stable throughout the workday.

Background: Recent studies have shown that colonoscopic polyp detection decreases as the workday progresses. This may reflect time-dependent factors such as colonoscopist fatigue and decreased colon cleanliness, which can be addressed through adaptations in colonoscopy practice.

Objective: To test for time-of-day differences in adenomatous polyp (AP) and sessile serrated polyp (SSP) detection in a practice that uses split-dose bowel preparation and moderated daily colonoscopist procedure loads.