Recurrence rate after piecemeal endoscopic mucosal resection of 10 – 19mm nonpedunculated lesions: should we worry about the risk?

Aims Size threshold for recommending early repetition of colonoscopy (ERC) after piecemeal endoscopic mucosal resection (pEMR) of nonpedunculated colorectal lesions (NPL) is ≥20mm. Nevertheless, there is scarce data focused on recurrence/residual tissue rate (RR) after pEMR of 10–19mm NPL. We aimed to determine the RR after pEMR of 10–19mm NPL and compare it with the RR of ≥20mm NPL.