Sections View Full Chapter Figures Tables Videos Full Chapter Figures Tables Videos Supplementary Content +++ 1. Polyp, Small Sessile ++ Graphic Jump LocationView Full Size|Favorite Figure|Download Slide (.ppt) Figure 1 Benign polyps can vary in size and appearance. These features can often predict the underlying pathology (e.g., adenomatous, hyperplastic, serrated, and inflammatory). Here, a small sessile polyp is seen. Sessile refers to the polyp “sitting” directly on the mucosa without a stalk. This is the most frequent appearance encountered when finding a polyp. Size can be difficult to determine for less experienced endoscopists, and estimation of size is variable by different endoscopists. This polyp is estimated to be about 4 mm in size. +++ 2. Polyp, Small Sessile (Color) ++ Graphic Jump LocationView Full Size|Favorite Figure|Download Slide (.ppt) Figure 2 The color of polyps may be similar to that of the surrounding mucosa, as seen here, making detection difficult in some instances. +++ 3. Polyp, Sessile (Position) ++ Graphic Jump LocationView Full Size|Favorite Figure|Download Slide (.ppt) Figure 3 Polyps may sit on top of haustral folds, as seen here, or may arise on the flat portion of the colon wall. +++ 4. Polyp, Medium ++ Graphic Jump LocationView Full Size|Favorite Figure|Download Slide (.ppt) Figure 4 As polyps grow in size, they may remain sessile, sitting directly on the colonic wall. +++ 5. Polyp, Medium-Sized, Semi-Pedunculated ++ Graphic Jump LocationView Full Size|Favorite Figure|Download Slide (.ppt) Figure 5 Some polyps, regardless of size, may develop a short, nearly undetectable stalk beneath them, as seen here. This is regarded as being semi-pedunculated. +++ 6. Polyp, Large, Semi-Pedunculated (A) ++ Graphic Jump LocationView Full Size|Favorite Figure|Download Slide (.ppt) Figure 6 The short stalk in this semi-pendunculated polyp is not readily visible. However, its semi-pedunculated nature was evident by the mobility of the polyp, “flopping” onto both sides of the haustral fold as the endoscopist later moved it with a polypectomy snare. +++ 7. Polyp, Large, Semi-Pedunculated (B) ++ Graphic Jump LocationView Full Size|Favorite Figure|Download Slide (.ppt) Figure 7 In this case, the larger sized polyp had a short stalk, allowing it to attach to the back of the haustral fold. +++ 8. Polyp, Pedunculated ++ Graphic Jump LocationView Full Size|Favorite Figure|Download Slide (.ppt) Figure 8 While the polyp stalk is usually evident by its thinner diameter compared to the head of the polyp, it occasionally may be the same size as the head of the polyp. Here, the stalk is easily distinguishable from the head of the polyp, not by size, but by color of the stalk (pale) compared to the erythematous head of the polyp. It is ... GET ACCESS TO THIS RESOURCE Sign In Username Error: Please enter User Name Password Error: Please enter Password Forgot Username? Forgot Password? Sign in via OpenAthens Sign in via Shibboleth Get Free Access Through Your Institution Contact your institution's library to ask if they subscribe to McGraw-Hill Medical Products. Access My Subscription GET ACCESS TO THIS RESOURCE Subscription Options Pay Per View Timed Access to all of AccessSurgery 24 Hour $34.95 (USD) Buy Now 48 Hour $54.95 (USD) Buy Now Best Value AccessSurgery Full Site: One-Year Individual Subscription $995 USD Buy Now View All Subscription Options