Tumour growth after portal vein embolization with pre-procedural chemotherapy for colorectal liver metastases

Background For resection of colorectal cancer (CRC) liver metastases, pre-operative portal vein embolization (PVE) is used to increase the size of the future liver remnant (FLR) prior to advanced liver resection when indicated. PVE is speculated to cause tumour progression, but only a limited number of studies have analysed tumour growth after PVE in the context of pre-procedural chemotherapy, which was the aim of this retrospective study.