Proposed Surveillance Guidelines Terdiman JP, McQuaid KR. Surveillance guidelines should be updated to recognize the importance of serrated polyps. Gastroenterology. 2010 Nov;139(5):1444-7. Epub 2010 Sep 27. PubMed PMID: 20875785.
Lesion found
Surveillance interval (y)
Serrated polyposis
1
Serrated polyp with cytological dysplasia
3
Serrated polyp proximal to the splenic flexure
3
Serrated polyps ≥10 mm
3
Serrated polyps <10 mm and distal to the splenic flexure
10
Serrated polyps include HPs, sessile serrated adenomas and TSAs.
World Health Organization defines hyperplastic (serrated) polyposis as (1) 5 histologically diagnosed HPs proximal to the sigmoid colon, of which 2 are 10 mm in diameter; or (2) any number of HPs that occur proximal to the sigmoid colon in an individual who has a first-degree relative with HPS; or (3) 30 HPs of any size that are distributed throughout the colon.
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