Updated visitor guidelines. Colon and Rectal Polyps. Five Types of Polyps The large majority of polyps will not become cancers. The most common types of colon and rectal polyps are: Adenomatous tubular adenoma About 70 percent of all polyps are adenomatous, making it the most common type of colon polyp. Hyperplastic A type of serrated polyp, hyperplastic polyps are common, small and considered extremely low risk for turning cancerous.
Serrated Depending on their size and location in the colon, serrated polyps may become cancerous. Inflammatory Inflammatory polyps most often occur in people who have inflammatory bowel disease IBD. Villous Adenoma Tubulovillous Adenoma Approximately 15 percent of polyps detected in colon cancer screening are villous or tubulovillous adenomas.
What are Complex Polyps? Make an Appointment To schedule an appointment to discuss treatment options for colon and rectal polyps, call us at For full functionality of this page it is necessary to enable Javascript. I want to receive email communication from Fight Colorectal Cancer Yes. This website uses cookies to improve your experience. We'll assume you're ok with this, but you can opt-out if you wish. Close Privacy Overview This website uses cookies to improve your experience while you navigate through the website.
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You will also receive emails from Mayo Clinic on the latest health news, research, and care. Healthy cells grow and divide in an orderly way. Mutations in certain genes can cause cells to continue dividing even when new cells aren't needed. In the colon and rectum, this unregulated growth can cause polyps to form. Polyps can develop anywhere in your large intestine. There are two main categories of polyps, nonneoplastic and neoplastic.
Nonneoplastic polyps include hyperplastic polyps, inflammatory polyps and hamartomatous polyps. Nonneoplastic polyps typically do not become cancerous. Neoplastic polyps include adenomas and serrated types. These polyps have the potential to become cancer if given enough time to grow. Most of these colon polyps are called adenomas. Serrated polyps may also become cancerous, depending on their size and location in the colon. In general, the larger a polyp, the greater the risk of cancer, especially with neoplastic polyps.
Rarely, people inherit genetic mutations that cause colon polyps to form. If you have one of these genetic mutations, you are at a much higher risk of developing colon cancer. Screening and early detection can help prevent the development or spread of these cancers.
This series of Frequently Asked Questions FAQs was developed by the Association of Directors of Anatomic and Surgical Pathology to help patients and their families better understand what their pathology report means. Learn more about the FAQ Initiative. Download this topic [PDF].
Understanding Your Pathology Report: Colon Polyps Sessile or Traditional Serrated Adenomas When your colon was biopsied, the samples taken were studied under the microscope by a specialized doctor with many years of training called a pathologist.
What if my report mentions the cecum, ascending colon, transverse colon, descending colon, sigmoid colon, or rectum? What is a polyp in the colon? What is an adenoma adenomatous polyp? What are tubular adenomas, tubulovillous adenomas, and villous adenomas?
What if my report uses the term sessile? What if my report uses the term serrated? There are 2 types, which look a little different under the microscope: Sessile serrated adenomas also called sessile serrated polyps Traditional serrated adenomas Both types need to be removed from your colon. What does it mean if I have an adenoma adenomatous polyp , such as a sessile serrated adenoma or traditional serrated adenoma?
What if my report mentions dysplasia?
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