Past and Current Status of Colorectal Cancer Surgery

Colorectal cancer surgery in Japan is performed based on lymphatic drainage from the primary tumor site. D3lymph node resection undertaken with central ligation at root of feeder arteries following dissection alongembryologically fused fascia between mesenteric plane and parietal without any injury to mesentery. With advent Japanese Classification Guidelines for Treatment Cancer, thisD3 procedure, which consists en bloc regional lymph nodes area, wasestablished as a standardized has contributed achieving good prognoses. Total mesorectal excisionand complete mesocolic excision vascular are recognized optimum procedures colorectal improved outcomes, especially Europe, basically consistent concept D3 resection.In addition, surgery, was once thought be well-established technique, undergonea major transformation recent years development laparoscopic robotic surgery. The transanalapproach also being used rectal This article describes transition progress cancersurgery, including topics.