Su1459 Multicenter Prospective Study on Conventional Endoscopic Resection of Large Colorectal Lesions Conducted by the Colorectal Endoscopic Resection Standardization Implementation Working Group of Japanese Society for Cancer of the Colon and Rectum

Conventional endoscopic resection (CER) consists of endoscopic mucosal resection (EMR) and polypectomy. CER for large colorectal lesions (CRL) has been widely accepted as safe and efficacious treatment. The most common serious complications are delayed bleeding and perforation.