How I do it: Utilization of the remnant umbilical vein for restoration of embryological liver vascular supply following iatrogenic embolization of the bilateral portal vein branchesSara Shahrestani, PhD1,2, Emily Mason MBBS1, Jayani Jayasekara MBBS 1, Tamara Gall MRCS 1,3., Pram Sirimana PhD1., Jaswinder Samra PhD1,21 Department of Upper GI Surgery, Royal North Shore Hospital, NSW, Australia2Sydney Medical School, University of Sydney, Sydney, Australia3Department of Surgery and Cancer, Imperial College London, London, UKCorresponding Author :Sara ShahrestaniSara.shahrestani@sydney.edu.auDepartment of Upper GI SurgeryRoyal North Shore HospitalSydney, NSW, AustraliaKey Words: Portal vein embolization; liver resection; umbilical vein; embryology