Initial retrocolic endoscopic tunnel approach (IRETA) for complete mesocolic excision (CME) with central vascular ligation (CVL) for right colonic cancers: technique and pathological radicality

Introduction The concept of complete mesocolic excision (CME) with central vascular ligation (CVL) for treatment of right colon cancer evolved over last one decade. It decreases local recurrences and improves the survival rates. We describe our novel technique which involves first posterior sharp dissection between planes of parietal and visceral fascia of mesocolon followed by ligation of ileocolic, right colic and middle colic pedicles at their origin. We highlight the technical variations with various techniques and advantages over conventional medial to lateral approach in current study.