snub. (mining engineering). To increase the height of an undercut by means of explosives or otherwise. To check the descent of a car by the turn of a rope around a post.
Sessile polyps simply mean that the mass is flat and does not have a stalk. The other types of colonic polyps are pedunculated- these are not flat but attached to a stalk. Since a sessile colonic polyp does not have a stalk, it is usually found very close to the colonic wall lining.
A 3-cm sessile polyp in the cecum extending to the ileocecal valve was removed by saline lift and piecemeal snare polypectomy during routine colonoscopy. Three sessile polyps ranging in size from 5 to 6 mm were seen in the rectum and a 6 mm sessile polyp was present in the cecum (Fig.