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Diagnostic Colonoscopy
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Diagnostic Colonoscopy
Colonoscopy is used for the diagnosis or treatment of an illness or injury. A colonoscopy, by definition, must examine the colon proximal to the splenic flexure. It includes the visual examination of the lining of the entire colon, from the rectum to the caecum, and may include the examination of the terminal ileum. Colonoscopy is usually performed with a fiberoptic colonoscope that transmits the image through optical fibres to a lens, or with a flexible video colonoscope that has a camera on the end. The colonoscope is inserted via the anus or stoma, then advanced under direct vision. A rigid sigmoidoscope may be used for an intraoperative Tran colotomy approach. A screening colonoscopy is defined as one performed in the absence of signs or symptoms of disease. A diagnostic colonoscopy is defined as one performed to evaluate signs or symptoms of disease.
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