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Rectal polyp surface, SEM

Rectal polyp surface, SEM

M240/0735

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34.5 MB (4.8 MB compressed)

4000 x 3012 pixels

33.8 x 25.4 cm ⏐ 13.3 x 10.0 in (300dpi)

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Credit

STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY

Caption

Rectal polyp. Coloured scanning electron micrograph (SEM) of the surface of a rectal polyp. The rectum is the end portion of the intestines. Polyps are small benign (non-cancerous) growths that arise from the mucous lining of the intestines. The surface of the polyp, the mucosa, consists of epithelial cells. The cause of most polyps is not known, although a diet high in animal fat and red meat and low in fibre, may be a risk factor. Some polyps are caused by diseases, such as familial polyposis or irritable bowel syndrome. Polyps should be surgically removed as they may become malignant (cancerous). Magnification: x1500 when printed 10 centimetres wide.

Release details

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