MICROSCAPE / SCIENCE PHOTO LIBRARY MICROSCAPE / SCIENCE PHOTO LIBRARY
Light microscopy of a tumour (left) and normal mucosa (right) of the human large bowel. This tumour is a polyp classified as a tubulo-villus adenoma as it resembles the structure of the small bowel. Adenomas of the bowel are benign but are predisposed to developing cancer termed adenocarcinoma which is a malignant tumour that spreads from its site of origin to invade local and/or other parts of the body. Polyps and adenomas may arise in response to many factors including exposure to carcinogens, high fat-low fibre diet, inflammatory conditions, and a family history of specific genetic disorders. Magnification x12 when narrow width printed at 10 cm.
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