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[A case of gastric cancer with liver invasion responding to TS-1/low-dose CDDP chemotherapy].

We report the case of a 79-year-old female with gastric cancer accompanied by liver invasion. She underwent simple subtotal gastrectomy in another hospital. Five months after surgery, combination chemotherapy with TS-1 (100 mg/body/day, 3 weeks) and CDDP (10 mg/body/day, day 1, 8, 15 drip infusion) in 1 course was performed, and complete response (CR) was noted. No severe adverse effects were observed during this combined therapy. TS-1 and low-dose CDDP therapy may prove effective for treating gastric cancer with liver invasion in advanced age.