[Investigate the radical extent of lymphadenectomy of right colon cancer]

Considering radical surgeries of right colon cancer, the reasonable extent of lymphadenectomy has always been argued. The concept of complete mesocolic excision (CME) has recently been established and optimized, which follows similar oncological principles as total mesorectal excision (TME) does for rectal cancer and is recommended by more and more surgeons. Studies published so far in the literature have been comprehensively reviewed, they do not, however, provide convincing evidence that demonstrate the standardized operation indications. Moreover, the existence of potential surgical risk and discernible oncological benefit has not been determined. Thus future studies are needed to further investigate the safety and efficacy of CME surgery, as has been demonstrated with TME such that it should become the procedure of choice in surgical practice.