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Illustration of an endoscopic examination: During a coloscopy (endoscopy on the right), the mucosa of the intestine is evaluated with a camera and tissue samples (biopsies) are taken. The camera tube (endoscope) is inserted via the anus into the rectum, colon up to the small intestine. It serves to evaluate tissue changes like tumors/cancer. Coloscopy is offered as means of prevention in Germany.

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 - Uploaded at 11.01.2012
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