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www.reference.com/science/polypoid-lesion-colon-5a63d772bd57c582

Polypoid lesions within the colon are only diagnosed through a colonoscopy, and a lesion is generally biopsied and sent to a laboratory to determine its pathology. A sessile polyp is a type of polypoid lesion, but it doesn't have the characteristic stalk of most polypoid lesions. Flat polyps may also be found within the colon.

onlinelibrary.wiley.com/doi/abs/10.1002/1097-0142(197107)28:1<146::AID...

More than half of some 2000 polypoid lesions of the colon and rectum studied in the Department of Pathology of Henry Ford Hospital, over a recent 5‐year period, were diagnosed as adenomatous polyps. Approximately one quarter were considered non‐neoplastic—hyperplastic, mucosal, and inflammatory polyps.

www.ncbi.nlm.nih.gov/books/NBK6994

Benign tumors of the colon and rectum. M. Zuber and F. Harder. Department of Surgery, University of Basel, Switzerland. ... A polyp is a well circumscribed tissue mass that protrudes into the lumen of the colon. Traction on the mass may create a pedunculated polyp. Alternatively the polyp may be sessile.

www.merckmanuals.com/.../tumors-of-the-gi-tract/polyps-of-the-colon-and-rectum

An intestinal polyp is any mass of tissue that arises from the bowel wall and protrudes into the lumen. Most are asymptomatic except for minor bleeding, which is usually occult. The main concern is malignant transformation; most colon cancers arise in a previously benign adenomatous polyp. Diagnosis is by endoscopy.

www.fascrs.org/patients/disease-condition/polyps-colon-and-rectum

COLORECTAL POLYPS Colorectal polyps are commonly found during standard screening exams of the colon (large intestine) and rectum (the bottom section of your colon). They affect about 20% to 30% of American adults. Polyps are abnormal growths that start in the inner lining of the colon or rectum. Some polyps are flat while others have a stalk.

www.sciencedirect.com/science/article/pii/S1756231713002004

For the purposes of this review we divide the discussion into; 1. ‘true’ anal polyps, that is, lesions that essentially always present as a discrete elevated lesion, and 2. ‘polypoid’ anal lesions, that is, lesions that can present as a polyp or polyp-like mass in some patients but can also present as non-discrete mass lesions.

www.healthtap.com/user_questions/594607

Helpful, trusted answers from doctors on: Polypoid mass in colon is it something to be concerned about? Helpful, trusted answers from doctors on: Polypoid mass in colon is it something to be concerned about? Sign Up Log In. ... For these services, please use HealthTap Prime or HealthTap Concierge.

www.webmd.com/colorectal-cancer/guide/colorectal-polyps-cancer

Colorectal cancer is the third leading cause of cancer deaths among American men and women. These cancers arise from the inner lining of the large intestine, also known as the colon. Tumors may ...

pubs.rsna.org/doi/full/10.1148/rg.264055166

Villous adenoma. Three-dimensional (a), endoscopic 2D (b), and axial 2D (c) images demonstrate a polypoid rectal mass (arrow in a, arrowhead in b and c). The frondlike surface of the mass can be appreciated on the 3D and endoscopic views. At biopsy, the mass proved to be a villous adenoma.

reference.medscape.com/features/slideshow/colon-masses

In the more distal colon and rectum, tumors more commonly involve a greater bowel circumference, producing an annular constriction or napkin-ring appearance (shown); these tumors also can ulcerate. Image courtesy of the Centers for Disease Control and Prevention (CDC)/Dr. Edwin P. Ewing, Jr.