Colon cancer surveillance — USMLE Step 3 MCQ
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Correct answer: A — Schedule surveillance colonoscopy three years after the normal one-year examination
After a normal one-year surveillance colonoscopy following curative colorectal-cancer resection, the next colonoscopy is recommended three years later. Stool testing and symptom-triggered review do not replace endoscopic surveillance.
Reference: ACG: Colonoscopy Surveillance After Colorectal Cancer Resection: https://gi.org/journals-publications/acg-blog/new-joint-guidelines-urge-colonoscopy-after-crc-resection/