A 68-year-old man having a descending colon cancer with multiple metastases of up to 9.5 cm in the right lobe of the liver(T3, N0, M1a)underwent laparoscopic colon resection for anemia control. Chemotherapy with mFOLFOX6 plus Bmab was administered postoperatively. Because this treatment had little effect, FOLFIRI plus Pmab was initiated 3 months later. A significant reduction in the tumor size was observed. Therefore, we performed laparotomy. However, the liver metastasis had invaded the inferior vena cava, which was not resectable. After the second surgery, we introduced the 5-FU hepatic arterial injection port ia plus Pmab iv, which was effective for 8 months. We then restarted chemotherapy with FOLFIRI plus Pmab. However, the tumor became more enlarged; therefore, we changed the chemotherapy regimen to SOX plus Bmab. Partial reduction in the tumor size was observed again, and the effects lasted for a while. The patient continued visiting the outpatient clinic with almost no symptoms for more than 1 year. He died of the primary cancer 3 years and 8 months after the first visit. We report a case of liver metastasis of colon cancer that could have been controlled successfully by repeatedly using the same pharmacotherapy.
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