What is the recommended scheduling of follow-up screening for colon cancer based on colonoscopy findings?

Updated: Apr 15, 2020
  • Author: Tomislav Dragovich, MD, PhD; Chief Editor: N Joseph Espat, MD, MS, FACS  more...
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Answer

A 2020 update of US Multi-Society Task Force on Colorectal Cancer guidelines provides recommendations on postpolypectomy surveillance. Screening colonoscopy findings and recommended scheduling of surveillance colonoscopy are as follows [64] :

  • Normal colonoscopy, or  < 20 hyperplastic polyps < 10 mm: 10 years
  • 1–2 adenomas < 10 mm: 7–10 years
  • 3–4 adenomas < 10 mm: 3–5 years
  • 5–10 adenomas, adenoma ≥10 mm, or adenoma with villous component or high-grade dysplasia: 3 years
  • More than 10 adenomas: 1 year, with consideration for genetic testing based on adenoma burden, age, and family history
  • Piecemeal resection of adenoma ≥20 mm: 6 months, then 1 year later, then 3 years after the second examination
  • 1–2 sessile serrated polyps (SSPs) < 10 mm: 5–10 years
  • 3–4 SSPs < 10 mm or hyperplastic polyp ≥10 mm: 3–5 years
  • 5–10 SSPs, SSP ≥10 mm, SSP with dysplasia, or traditional serrated adenoma: 3 years

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