12 doctors weighed in:
Would colorectal cancer show up in pelvic CT scan ?
12 doctors weighed in

Dr. Michael Korona
Radiology - Interventional
5 doctors agree
In brief: Can
But not always. Colonoscopy best.

In brief: Can
But not always. Colonoscopy best.
Dr. Michael Korona
Dr. Michael Korona
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Dr. Sharon Stein
Surgery - Colorectal
1 doctor agrees
In brief: Maybe
Sometimes - it needs to be big enough to be seen.
Early colon cancer, which is when we want to find and treat it may not be seen on any imaging.

In brief: Maybe
Sometimes - it needs to be big enough to be seen.
Early colon cancer, which is when we want to find and treat it may not be seen on any imaging.
Dr. Sharon Stein
Dr. Sharon Stein
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Dr. Carlo Contreras
Surgery - Oncology
1 doctor agrees
In brief: Rarely
The cancer would have to be quite large to show up on a pelvic ct scan.
A colonoscopy is a much better test for colorectal cancer. Some centers are using a special kind of ct scan called "ct colonography" to dected colorectal cancer.

In brief: Rarely
The cancer would have to be quite large to show up on a pelvic ct scan.
A colonoscopy is a much better test for colorectal cancer. Some centers are using a special kind of ct scan called "ct colonography" to dected colorectal cancer.
Dr. Carlo Contreras
Dr. Carlo Contreras
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Dr. Gurmukh Singh
Pathology
In brief: Not necessarily
Colon extends far outside the pelvic area and considerable parts of the colon would not be subject to imaging in a pelvic ct.
Presence of feces in the colon also limits the ability of ct examination to detect colon cancer.

In brief: Not necessarily
Colon extends far outside the pelvic area and considerable parts of the colon would not be subject to imaging in a pelvic ct.
Presence of feces in the colon also limits the ability of ct examination to detect colon cancer.
Dr. Gurmukh Singh
Dr. Gurmukh Singh
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Dr. Liawaty Ho
Internal Medicine - Hematology & Oncology
In brief: Yes, when it is big
It can be shown up in a ct scan when the size is large enough and by then the chance is probably it is already giving you symptoms like abdominal pain/cramping , change in bowel movement, etc.
Small polyps or small tumor in colon would not be able to be picked up on ct scan and colonosocpy is the best modality to screen for colon cancer.

In brief: Yes, when it is big
It can be shown up in a ct scan when the size is large enough and by then the chance is probably it is already giving you symptoms like abdominal pain/cramping , change in bowel movement, etc.
Small polyps or small tumor in colon would not be able to be picked up on ct scan and colonosocpy is the best modality to screen for colon cancer.
Dr. Liawaty Ho
Dr. Liawaty Ho
Thank
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