Colon cancer in a polyp, light micrograph. Adenocarcinoma is a cancer of the glandular lining that is found in many different organs, including the digestive tract. Colon cancer is one of the most common cancers in North America and Western Europe. It is thought to be connected to a diet high in fat and low in fibre. This well-differentiated adenocarcinoma has developed from a tubulovillous adenoma. The lower one-third of the image shows normal (uninvolved) colonic mucosa. Haematoxylin and eosin stain.
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