Colonoscopy: One has to know more about what is being evaluated. I use flexible sigmoidoscopy to evaluate known issues in the distal colon and rectum, frequently after a full colonoscopy has been done. I would ask your physician her opinion.
Answered 10/22/2011
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Several: Rigid proctosigmoidoscopy, full colonoscopy, air contrast barium enema xray, ct colonography. Depending on the reason you need an exam will determine which is the most appropriate technique to use.
Answered 3/8/2013
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