Are Sessile Polyps Always Malignant?

Are Sessile Polyps Always Malignant?

Sessile polyps are very rarely malignant, states American Cancer Society. Out of 87 sessile polyps excised from 51 patients, only three were malignant, notes a report published by the U.S. National Library of Medicine.

Polyps are mostly benign and non-cancerous growths, but cancer develops some types of polyps, notes American Cancer Society. Sessile refers to the shape of the polyp. A sessile polyp has a slightly flattened, broad-based shape; as opposed to serrated polyps that have a saw-tooth appearance, notes American Cancer Society. Pathologists can determine whether or not a polyp is malignant by analyzing biopsy samples under a microscope.