LAUSR

To the Editor: We read with great interest the article written by Gao et al. This article analyzed the oncologic outcomes of complete mesocolic excision (CME) in colonic cancer surgery. This technique was described for right colectomy by Hohenberger et al, and was proven to be safe and reliable by many previous authors. However, we would like to raise a few points. First, the authors only described the expertise of third party participants evaluating the images of the surgical field and specimen, and omitted to provide detail on the surgeons and their level of expertise. This is of particular importance especially with the better operative outcome in favor of CME regardless of the associated requirement of rigorous dissection linked to this procedure, thereby bringing into question whether the surgeons performing the noncomplete mesorectal excision (NCME) were less experimented; which in this event should have been specified. However, neither data were provided on the distribution of cases according to laterality, nor the corresponding proportion