Cazauran JB, et al. - Considering the significance of understanding the segmentation of right anterior sector (RAS) of the liver in preventing postoperative remnant liver ischemia, researchers performed a literature search in PubMed for papers on anatomy and surgery of the right anterior sector. as per findings, RAS subsegmentectomy was identified to be a complex procedure; median operating time ranged from 253 to 520 min and median intraoperative blood loss reached 1255 ml. Understanding RAS anatomy seems significant for performing parenchymal preservation by using subsegmentectomy of the RAS, selective or as a part of a major hepatectomy.