[A case of advanced gastric cancer acquired long-term response two years or more by treatment with oral anticancer drug TS-1].

A 66-year-old male with massive ascites was diagnosed as advanced gastric scirrhous cancer at Musashino Red Cross Hospital. We detected the adenomatous cancer cells from his ascites, and an X-ray photograph of his stomach showed less capability of expansion in the upper gastrointestinal series. We attempted treatment with oral anticancer drug TS-1 with the patient's consent and achieved a long-term response of two years or more.