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What is a sessile polyp?

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A sessile polyp is a type of colon polyp that grows flatly inside the colon wall, and it does not have a stalk, according to WebMD. Sessile polyps can be cancerous and must be removed when detected during sigmoidoscopy or colonoscopy.

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Colon polyps grow in the colon or rectum, some of which may cause rectal bleeding or cancer depending on type and size, according to WebMD. A sessile polyp, which is directly attached to the colon wall, may expand its base as it grows. Benign sessile colon polyps can be detached through colonoscopic excision; however, laparotomy is necessary for all cancerous sessile lesions, according to PubMed.gov.

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