This gallery of polyp illustrations helps demonstrate why you can't always count on noticing that a polyp is present.
© Donna Myers 2006
Large Colon Polyp (2.75 cm)
About 30-50% of polyps with a diameter greater than two centimeters (cm) are cancerous. This illustration shows the actual size of a polyp with a diameter of 2.75 cm (1.08 inches). To learn more, please read Colon Polyps and Cancer Risk.
