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A member asked:
Why is an abdominal ct not a good diagnostic tool for rectal bleeding and blood on stool and paper?
A doctor has provided 1 answer
Most lesions are sma: Most lesions that cause rectal bleeding are either small (causing microscopic bleeding) or obvious (hemorrhoids & such). For small lesions, CT scans have a resolution limit & the smaller the lesion, the less diagnostic the images. For obvious lesions, you get much more out of a colonoscopy/proctoscopy (where the lesion can even be treated) than a CT scan. CT scans are expensive; see your GI doc.
Answered 9/14/2017
548 views
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