Colonoscopy
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Colonoscopy (/ˌkɒləˈnɒskəpi/) or coloscopy (/kəˈlɒskəpi/)[1] is the endoscopic test of the large bowel and parts the small bowel.
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Tests use a CCD camera or a fiber optic camera on a flexible tube passed through the anus. It can provide a visual diagnosis and allow biopsy or removal of suspected colorectal cancer lesions.