Colonic Polyps Symptoms, Causes & More

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By shirley
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Reviewed: dr. stavarache
Article Sources Article Sources
  • 1. 'Colon Polyps: Symptoms, Causes, Diagnosis, Treatment, and Prevention.' Cleveland Clinic, my.clevelandclinic.org/health/diseases/15370-colon-polyps.
  • 2. 'Colon Polyps.' Mayo Clinic, Mayo Foundation for Medical Education and Research, 28 Aug. 2020, www.mayoclinic.org/diseases-conditions/colon-polyps/symptoms-causes/syc-20352875.
  • 3. Polyps of the Colon and Rectum By Minhhuyen Nguyen, et al. 'Polyps of the Colon and Rectum - Digestive Disorders.' Merck Manuals Consumer Version, Merck Manuals, www.merckmanuals.com/home/digestive-disorders/tumors-of-the-digestive-system/polyps-of-the-colon-and-rectum.
  • 4. Publishing, Harvard Health. 'They Found Colon Polyps: Now What?' Harvard Health, www.health.harvard.edu/diseases-and-conditions/they-found-colon-polyps-now-what.
  • 5. 'Peutz Jeghers Syndrome.' NORD (National Organization for Rare Disorders), 13 Dec. 2018, rarediseases.org/rare-diseases/peutz-jeghers-syndrome/.
  • 6. 'Serrated Polyposis Syndrome (SPS).' Cleveland Clinic, my.clevelandclinic.org/health/diseases/17462-serrated-polyposis-syndromehyperplastic-polyposis-syndrome.
  • 7. 'Intestinal Polyps.' Johns Hopkins Medicine, www.hopkinsmedicine.org/health/conditions-and-diseases/intestinal-polyps.
  • 8. 'Colon Polyps.' Mayo Clinic, Mayo Foundation for Medical Education and Research, 28 Aug. 2020, www.mayoclinic.org/diseases-conditions/colon-polyps/diagnosis-treatment/drc-20352881.
Medical Expert Medical Expert

Colon polyps are abnormal growths on the lining of the colon. They may be flat, raised or on a stalk, and they may be small, large or microscopic. One or multiple colon polyps may be present. Most are harmless, but some may become cancerous as time passes.1‘Colon Polyps: Symptoms, Causes, Diagnosis, Treatment, and Prevention.’ Cleveland Clinic, my.clevelandclinic.org/health/diseases/15370-colon-polyps.

The two general categories of colonic polyps are neoplastic and nonneoplastic. Nonneoplastic polyps are likely to remain benign, while neoplastic polyps are at greater risk of becoming cancerous. The larger the polyp, the more likely it is to become cancerous.2‘Colon Polyps.’ Mayo Clinic, Mayo Foundation for Medical Education and Research, 28 Aug. 2020, www.mayoclinic.org/diseases-conditions/colon-polyps/symptoms-causes/syc-20352875.,3Polyps of the Colon and Rectum By Minhhuyen Nguyen, et al. ‘Polyps of the Colon and Rectum - Digestive Disorders.’ Merck Manuals Consumer Version, Merck Manuals, www.merckmanuals.com/home/digestive-disorders/tumors-of-the-digestive-system/polyps-of-the-colon-and-rectum.

1. Types of Colonic Polyps

Adenomatous polyps are composed of glandular cells lining the large intestine. Although these polyps are more likely to be precancerous, it can take seven or more years for cancer to develop. Only 5 percent of adenomas become cancerous.3Polyps of the Colon and Rectum By Minhhuyen Nguyen, et al. ‘Polyps of the Colon and Rectum - Digestive Disorders.’ Merck Manuals Consumer Version, Merck Manuals, www.merckmanuals.com/home/digestive-disorders/tumors-of-the-digestive-system/polyps-of-the-colon-and-rectum.,4Publishing, Harvard Health. ‘They Found Colon Polyps: Now What?’ Harvard Health, www.health.harvard.edu/diseases-and-conditions/they-found-colon-polyps-now-what.

Non-adenomatous polyps develop from a variety of cell types, such as fat, muscle and non glandular, lining the large intestine. They are less likely to be precancerous. In some cases, these polyps occur alongside other ailments. For example, inflammatory polyps sometimes occur in people with Crohn's disease or ulcerative colitis.2‘Colon Polyps.’ Mayo Clinic, Mayo Foundation for Medical Education and Research, 28 Aug. 2020, www.mayoclinic.org/diseases-conditions/colon-polyps/symptoms-causes/syc-20352875.,3Polyps of the Colon and Rectum By Minhhuyen Nguyen, et al. ‘Polyps of the Colon and Rectum - Digestive Disorders.’ Merck Manuals Consumer Version, Merck Manuals, www.merckmanuals.com/home/digestive-disorders/tumors-of-the-digestive-system/polyps-of-the-colon-and-rectum.

Colonic Polyps

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