Egenskap

The presence of multiple serrated polyps in the intestine. Unlike conventional adenomas, which are uniformly dysplastic, the vast majority of serrated lesions contain no dysplasia. The serrated class includes the hyperplastic polyps, which are not considered precancerous; sessile serrated polyps (also called sessile serrated adenomas); and traditional serrated adenomas. Sessile serrated polyps are larger on average and more often located in the proximal colon. Sessile serrated polyps have a more irregular surface, a pattern to the surface that has been called cloudlike, and indistinct edges compared with hyperplastic polyps. Sessile serrated polyps also have large open pits on the surface (type O pits) when viewed with magnification.

HPO HP:0032222↗Kopiera HP:0032222