[Treatment strategy for multiple colorectal liver metastases: role for two-stage hepatectomy].

Hepatic resection is recognized as a potentially curative treatment for colorectal liver metastases. Recent progress in chemotherapy and molecular target agents has made initially unresectable colorectal liver metastases converted to resectable and may prolong survival. The definition of unresectable colorectal liver metastases was because of the lack of the future remnant liver volume due to multiple bilobar metastases. The two-stage hepatectomy combined with portal vein embolization may contribute to treatment for such multiple bilobar metastases. We describe an advantage and adverse effect of two-stage hepatectomy on treatment for multiple bilobar colorectal liver metastases.