What is colon cancer? Colon cancer is a general term used to describe a group of malignant (cancerous) tumours that develop from cells normally found in the colon. A malignant tumour is made up of abnormal cells that have the ability to invade surrounding tissues and spread to other parts of the body. The most …
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What is the colon? The colon or large intestine is an organ and a part of the gastrointestinal tract. It is a long hollow tube that starts at the small bowel and ends at the anal canal. The colon is divided into several sections, including the ascending (right) colon, transverse colon, descending (left) colon, and …
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Colonic mucosa is a term used to describe the specialized tissue that covers the inside of the colon. The colon is a long, hollow organ and part of the digestive tract. It starts at the end of the small bowel (the ileum) and ends at the anal canal. Colonic mucosa is made up of specialized …
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What is mucinous adenocarcinoma of the colon? Mucinous adenocarcinoma is a type of colon cancer. In order to make this diagnosis, at least 50% of the tumour must be made up of extracellular mucin. Mucinous adenocarcinoma accounts for approximately 10 to 20% of all colon cancers in adults. Compared to other types of colon cancer, …
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Collagenous colitis is an inflammatory condition associated with an increased number of immune cells within tissue lining the inside of the colon. The inflammation and subsequent damage prevent the colon from functioning normally. This condition belongs to a group of related conditions called microscopic colitis. This group includes lymphocytic colitis which shares many features with …
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Lymphocytic colitis is a pattern of injury caused by an increased number of immune cells within the mucosa that covers the inside surface of the colon. This leads to inflammation and damage which prevents the colon from functioning normally. What are the symptoms of lymphocytic colitis? People with lymphocytic colitis can develop watery diarrhea that …
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What is microscopic colitis? Microscopic colitis is a non-cancerous condition caused by an increased number of immune cells within the mucosa that covers the inside of the colon. This leads to inflammation and damage which prevents the colon from functioning normally. There are two types of microscopic colitis: lymphocytic colitis and collagenous colitis. What are …
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A crypt abscess is a collection of specialized immune cells called neutrophils inside the colon. It is an example of acute inflammation and is often seen in a condition called active colitis. What does this look like under the microscope? The inside of the colon is covered by epithelial cells that connect to form structures …
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A hyperplastic polyp is a non-cancerous growth typically found in the descending (left) colon, sigmoid colon, and rectum. It is a very common type of colorectal polyp. The polyp is made up of glandular cells normally found on the inside surface of the colon and rectum. Can a hyperplastic polyp turn into cancer? No. Hyperplastic …
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Invasive adenocarcinoma (also known as colonic adenocarcinoma) is the most common type of colon cancer. It is made up of cells that normally cover the inside surface of the colon. This type of cancer often starts in a polyp such as a tubular adenoma, tubulovillous adenoma, or villous adenoma. This article will help you understand …
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