11 doctors weighed in:

Chance that 4 CT scans over 2 1/2 years would all miss sympotomatic colon cancer (narrow stool, occasion blood), also sigmoidscope to 35 cm.

11 doctors weighed in
10 doctors agree

In brief: Fairly high risk

CT scans are NOT good tools for looking inside the bowel.
Endoscopy is the preferred tool, but a sigmoidoscopy, at its best, misses looking at half the colon. A look to merely 35 cm has missed about 85-90% of the colon. The usual method to evaluate the colon is a complete colonoscopy.

In brief: Fairly high risk

CT scans are NOT good tools for looking inside the bowel.
Endoscopy is the preferred tool, but a sigmoidoscopy, at its best, misses looking at half the colon. A look to merely 35 cm has missed about 85-90% of the colon. The usual method to evaluate the colon is a complete colonoscopy.
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Dr. Ajay Acharya
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