Placement of vein grafting in liver surgery at the time of the R1 vascular concept and the communicating veins

In the recent years,several development in liver surgery have contributed in increasing resectability while maintaining safety.Particularly parenchyma-sparing techniques are progressively gaining higher relevance as alternative to major hepatectomy for complex cases(1).Proceeding in this direction the provocative concept of parenchyma sparing major hepatectomies has been introduced(2).