A 42-year-old female asked:
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.
1 doctor answer • 11 doctors weighed in
General Surgery 36 years experience
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.
3.6k viewsReviewed >2 years ago
Last updated Aug 15, 2015
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