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A member asked:
How do a colonoscopy and a sigmoidoscopy differ?
A doctor has provided 1 answer
Longer test: A sigmoidoscopy only sees part of the colon. The traditional sigmoidoscopy was 60 centimeters and saw the sigmoid and descending colon. A colonoscope is 120-160cm and should visualize the entire colon. Usually the sigmoidoscopy is done unsedated while the colonoscopy is done with sedation.
Answered 7/22/2013
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