PVE vs PVE/HVE for Colorectal Cancer Liver Metastases

Inclusion Criteria: * Patients with primarily unresectable/ potentially resectable CRLM with a FLR \<30% (\<40% in chemotherapy damaged livers) * Patients with non-resected primary CRC may be included if there is an intention to resect the CRC after the liver treatment (liver first approach) or simultaneously during one of the liver procedures. * Patients with resectable or ablatable lung or brain metastases can be included (statement about the resectability of these extrahepatic metastases by a tumor board needs to be available) * 18 Years and older * Men and women * Able to understand the trial and provide informed consent. Exclusion Criteria: * Pregnant or lactating female. * Premenopausal females not able or willing to commit to oral contraception * Patients with prohibitive comorbidities, decision made by local team * Any patient with non-resectable or non-ablatable extrahepatic disease * Patients with hepatic malignancies other than CRLM * Progression of disease by RECIST criteria after cytoreduction chemotherapy * Complete response after conversion chemotherapy * Staging CT and (if indicated) CT/MRI brain that demonstrates non-resectable extrahepatic disease * The anatomy of the liver or manifestation of tumors in relation to the liver veins prohibits the use of combined PVE/HVE.