Endoscopic detection and resection of colorectal polyps is the key determinant of the eventual prevention of colorectal cancer. Whereas visualization of sessile and pedunculated colon polyps is relatively straightforward and easy, finding flat or sessile serrated lesions is more challenging.
These flat and sessile serrated lesions tend to secrete mucus or accumulate debris or stool on their surface, which changes the appearance of these lesions, hindering the ability of visual aid systems using artificial intelligence, or traditional virtual or dye-based chromoendoscopy techniques, to recognize them.