A member asked:

Are colonoscopy, endoscopy, and anoscopy all good ways to tell if i had colon or rectal cancer?

3 doctors weighed in across 3 answers

No: endoscopy is a general term that means putting a camera in the body, colonoscopy is endoscopy of the colon and is the gold standard for screening for colon cancer. Anoscopy is an in office procedure to look at the rectum only, usually used to evaluate hemorrhoids, anal fissures and anal/rectal masses and pain. During a colonoscopy a good GI doc will evaluate the anus and rectum as well.

Answered 5/4/2015

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Dr. Martin Fried answered

Specializes in Nutrition

Full colon: a colonoscopy would be the best way to look at the entire colon for evidence of colon or rectal cancer. Anoscopy just looks at the end and endoscopy is usually the stomach and upper intestines.

Answered 7/1/2017

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Rectal cancer: The very simple and straightforward answer is "YES"!

Answered 5/4/2015

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