Colon cancer. Coloured barium enema X-ray of the human abdomen showing a cancer of the ascending colon (pink,centre left). The malignant tumour is in a distinctive apple core shape. This is an adenocarcinoma,one of the most common forms of cancer in North America & western Europe. It is thought to be connected with a high fat and low fibre diet. Barium is opaque to X-rays,and can be used to diagnose conditions without the need for surgery. Although more commonly taken orally (barium meal),for investigations of the colon and rectum it is administered as an enema | |
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Crédit: | Science Photo Library / SCOTT CAMAZINE & SUE TRAINOR |
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