Adenomatous polyps are the most common colonic neoplasm, 70% of which are within the reach of the sigmoidoscope. About 75% of adenomatous polyps occur in the rectum and sigmoid colon. This distribution of lesions is paralleled by the distribution of colonic carcinoma and supports the possible development of carcinoma from pre-existing polyps.
There are three histological types:
They may present with bleeding, prolapse and rarely intussusception, but most commonly they are asymptomatic.
Colonic polypectomy has simplified the management of this condition.
Malignant potential is determined by:
Last reviewed 01/2018