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Colorectal cancer screening test: instructions

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Colorectal cancer, or bowel cancer, is the 2nd deadliest cancer in France. As one of the most common forms of cancer, it affects 4 in every 100 men and 3 in every 100 women, mostly over the age of 50. It develops gradually inside the colon and rectum, usually from small lesions called polyps. As they grow, some polyps bleed. Screening can spot traces of blood in stools which are invisible to the naked eye. Screening reduces mortality caused by colorectal cancer. It can detect cancer most often in its early stages, in addition to some precancerous lesions.
Категория: Наука и техника
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