Segment 5 parenchymal sparing in extended left hepatectomy with respect to venous outflow-is it a feasible procedure?

S5-sparing ELH is technically feasible. Under the tailored management of S5 venous outflow, the functional future liver remnant can be increased. Further studies with larger sample size are needed to evaluate which circumstances the liver segment 5 could be preserved without venous reconstruction during the left extended hepatectomy.