“…The prognosis of patients with liver metastasis of colon cancer is still poor. Many modalities of treatment using 5-FU against liver metastases of colon cancer have been tried for these patients and good response rates have been reported, including systemic infusion therapy [20], hepatic arterial infusion therapy [21,22], portal vein infusion therapy [23,24j, intraperitoneal infusion 1251, combination therapy of 5-FU and cisplatin [3], and biochemical modulation of 5-FU by methotrexate [26], leucovorin [26,27], levamisole [28], or interferon [29j. However, at the present time, no major benefit in survival has been disclosed in any of these treatments [ 3 ] .…”