[A Case of a Two-Stage Hepatectomy for Irresectable Colorectal Cancer Liver Metastases].

A 60-year-oldman was diagnosedwith ascending colon cancer with multiple bilobar metastases. He then received7 courses of tegafur-gimeracil-oteracil andoxaliplatin (SOX)plus panitumumab as downstaging chemotherapy. This treatment significantly reducedthe size of the metastatic tumor, andwe subsequently triedto perform a curative resection. A twostage hepatectomy was plannedto avoidthe risk of hepatic failure from small future liver remnant. First, the anterior segmentectomy andthe left portal vein ligation were performed. Then, a curative resection consisting of a left lobectomy andextend - edright hemicolectomy were performed2 0 days after the first surgery. No recurrence was observed1 5 months after the operation. Two-stage hepatectomy as well as a combination of induction chemotherapy and portal vein ligation may have contributedto the improvedprognosis of the initially unresectable multiple bilobar liver metastases.