Risk of metachronous advanced lesions after resection of diminutive and small, non-advanced adenomas

Current post-polypectomy surveillance interval guidelines do not discriminate between 1–2 diminutive (1–5 mm) and small (6–9 mm) non-advanced adenomas. This study compared the risk for metachronous advanced lesions in these groups. Patients with 1–2 diminutive, non-advanced adenomas and no further advanced lesions, and patients with no polyps at baseline colonoscopy were retrospectively analyzed to determine the rate of metachronous advanced...