Table 7.

Recommendations for Second Surveillance Stratified by Adenoma Findings at Baseline and First Surveillance

Baseline finding	Recommended interval for first surveillance	Finding at first surveillance	Recommended interval for next surveillance
1–2 tubular adenomas <10 mm	7–10 y	Normal colonoscopya	10 y
		1–2 tubular adenomas <10 mm	7–10 y
		3–4 tubular adenomas <10 mm	3–5 y
		Adenoma ≥10 mm in size; or adenoma with tubulovillous/villous histology; or adenoma with high grade dysplasia; or 5–10 adenomas <10 mm	3 y
3–4 tubular adenomas <10 mm	3–5 y	Normal colonoscopya	10 y
		1–2 tubular adenomas <10 mm	7–10 y
		3–4 tubular adenomas <10 mm	3–5 y
		Adenoma ≥10 mm in size; or adenoma with tubulovillous/villous histology; or adenoma with high grade dysplasia; or 5–10 adenomas <10 mm	3 y
Adenoma ≥10 mm in size; or adenoma with tubulovillous/villous histology; or adenoma with high-grade dysplasia; or 5–10 adenomas <10 mm	3 y	Normal colonoscopya	5 y
		1–2 tubular adenomas <10 mm	5 y
		3–4 tubular adenomas <10 mm	3–5 y
		Adenoma ≥10 mm in size; or adenoma with tubulovillous/villous histology; or adenoma with high grade dysplasia; or 5–10 adenomas <10 mm	3 y

^aNormal colonoscopy is defined as colonoscopy where no adenoma, SSP, or CRC is found.