Table 1.

Recommended surveillance strategies based on risk stratification in patients with IBD.

Patients	High Risk	Intermediate Risk	Low Risk
Risk factors	Moderate or severe inflammation PSC Family history of CRC in FDRs aged < 50 years Dense pseudopolyposis <5-year history of invisible dysplasia or high-risk visible dysplasia	Mild inflammation Family history of CRC but no FDRs aged <50 years Previous episode of severe colitis <5-year history of invisible dysplasia or high-risk visible dysplasia <5-year history of low-risk visible dysplasia	Maintaining disease remission with mucosal healing plus either of ≥2 consecutive examinations without dysplasia Minimal colitis (ulcerative proctitis or <1/3 of the colon in CD)
Surveillance interval	1 year	2 or 3 years	5 years

CD, Crohn’s disease; CRC, colorectal cancer; FDR, first-degree relative; PSC, primary sclerosing cholangitis.