If an adenoma was found during your biopsy, you will need another colonoscopy at some point to make sure that you don’t have any more adenomas. Does having an adenomatous polyp (adenoma) affect my follow-up care? If this is the case, you might need surgery to ensure that all of the adenoma is removed. Sometimes, though, an adenoma might be too large to remove completely during the colonoscopy. Most often, adenomas are removed during a colonoscopy. If you had an adenoma that was biopsied but not removed completely, talk to your doctor about what other treatment you might need. The most important thing is that your polyp has been removed completely, and that it does not show cancer. But otherwise dysplasia in a polyp is not usually cause for concern. If high-grade dysplasia is found in your polyp, it might mean you’ll need a repeat (follow-up) colonoscopy sooner than if it wasn’t found. Polyps that are more abnormal and look more like cancer are said to have high-grade (severe) dysplasia.Polyps that are only mildly abnormal (don’t look much like cancer) are said to have low-grade (mild or moderate) dysplasia.Dysplasiaĭysplasia describes how much your polyp looks like cancer under a microscope: However, most people with these polyps never develop colon or rectal cancer. Someone who has had a serrated polyp has an increased risk of later developing colon or rectal cancer. These types of polyps are not cancer, but they are pre-cancerous (meaning that they can turn into cancer), so they need to be removed completely. Sessile serrated adenomas (also called sessile serrated polyps).There are 2 types, which look a little different: Serrated polyps (serrated adenomas) have a saw-tooth appearance when seen under a microscope. The term sessile is used to describe polyps that are slightly flattened and broad-based (as opposed to growing on a thin stalk). But when a polyp is biopsied, the most important things are that it has been removed completely and that it does not show cancer. The growth pattern in a polyp can be important, because it can help determine when you will need your next colonoscopy. Larger adenomas and adenomas with a villous growth pattern are more likely to have cancer cells in them. Larger adenomas are more likely to have a villous growth pattern. Most small adenomas (less than ½ inch) have a tubular growth pattern. Many adenomas have a mixture of both growth patterns, so they are called tubulovillous adenomas. Tubular, tubulovillous, and villous adenomasĪdenomas can have 2 major growth patterns: tubular and villous. There are different types of adenomas , which are often described based on their growth patterns. Types of adenomasĪn adenoma (adenomatous polyp) is a type of polyp made up of tissue that looks a lot like the normal inner lining of your colon or rectum, although it is different in some important ways when looked at under a microscope. These polyps can be thought of as pre-cancers, which is why it is important to remove them. But the different types of adenomatous polyps (adenomas), which are discussed below, are more of a concern because they might turn into cancer. įor example, hyperplastic polyps are typically benign (not cancer or pre-cancer) and are not a cause for concern. Most polyps are benign (non-cancerous) growths, but cancer can start in some types of polyps. There are different types of polyps, which look different when seen with a microscope. A polyp is a projection (growth) from the inner lining into the lumen (hollow center) of the colon or rectum.
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