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Screening, starting during the 40s for high-risk individuals, involves the use of a flexible sigmoidoscope by a physician to examine the colon. The tube is called a sigmoidoscope (sig-MOY-duh-skope). This is an examination of the rectum and lower colon, using a sigmoidoscope, where the doctor looks through a thin, lighted tube to check for polyps, tumors or other abnormalities. |
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