12 doctors weighed in:

Would colon cancer show up in a abdominal CT scan ?

12 doctors weighed in
Dr. Michael Korona
Radiology - Interventional
6 doctors agree

In brief: Sometimes

On regular ct. Seen better on ct colonography.
See radiologyinfo.Org.

In brief: Sometimes

On regular ct. Seen better on ct colonography.
See radiologyinfo.Org.
Dr. Michael Korona
Dr. Michael Korona
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1 comment
Dr. Martin Raff
Colonoscopy with biopsy is the best alternative.
Dr. Joshua Bleier
Surgery - Colorectal
5 doctors agree

In brief: Ct not sensitive

Ct scan is a useful tool for pre operative evaluation and postoperative surveillance, however most colon cances would not be detectable by standard cat scan unless they were very large, or had obvious spread to the liver. A colonoscopy is the most sensitive screening test.
Ct colonoscopy can be almost as sensitive as colonoscopy, but is a specialized test and requires the same prep as a colonoscop.

In brief: Ct not sensitive

Ct scan is a useful tool for pre operative evaluation and postoperative surveillance, however most colon cances would not be detectable by standard cat scan unless they were very large, or had obvious spread to the liver. A colonoscopy is the most sensitive screening test.
Ct colonoscopy can be almost as sensitive as colonoscopy, but is a specialized test and requires the same prep as a colonoscop.
Dr. Joshua Bleier
Dr. Joshua Bleier
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Dr. Gurmukh Singh
Pathology

In brief: May, usually not

A regular ct scan of the abdomen, without bowel preparation is not an ideal way to detect colon cancer.
Many lesions are likely to be masked by the fecal matter. Large lesions may be discernible. 3d ct scan, after bowel preparation would be better to detect colon cancer. Endoscopy is the better way, as polyp can be removed and suspicious lesions biopsied.

In brief: May, usually not

A regular ct scan of the abdomen, without bowel preparation is not an ideal way to detect colon cancer.
Many lesions are likely to be masked by the fecal matter. Large lesions may be discernible. 3d ct scan, after bowel preparation would be better to detect colon cancer. Endoscopy is the better way, as polyp can be removed and suspicious lesions biopsied.
Dr. Gurmukh Singh
Dr. Gurmukh Singh
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In brief: Maybe

If it is a large tumor, it will likely show up on a ct.
Many colon cancers do not. The best test to check for colon cancer is without question a colonoscopy.

In brief: Maybe

If it is a large tumor, it will likely show up on a ct.
Many colon cancers do not. The best test to check for colon cancer is without question a colonoscopy.
Dr. Daniel Reichenbach
Dr. Daniel Reichenbach
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