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.
Introduction. Bowel polyps are small growths on the inner lining of the colon (large bowel) or rectum. They are common, affecting 15-20% of the UK population, and don't usually cause symptoms.Polyps are usually less than 1cm in size, although they can grow up to several centimetres.There are various forms:owel polyps are small growths on the inner lining of the colon (large bowel) or rectum. They are common, affecting 15-20% of the UK population, and don't usually cause symptoms. Polyps are usually less than 1cm in size, although they can grow up to several centimetres. There are various forms: