Colonoscopy is a diagnostic technique that allows physicians to visually inspect the interior lining of the colon. Colonoscopy is performed by a physician specially trained in the procedure and is commonly used as a screening tool for colon cancer. The exam is performed with an instrument called a colonoscope, which is inserted into the rectum and throught the colon. When screening for colon cancer, the physician is looking for polyps and other abnormal lesions. (1)(2)(3)
The following pages describe colonoscopy in more detail:
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