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Updated: Aug 25, 2026

Gene Regulation and Targeted Therapy in Gastric Cancer Peritoneal Metastasis: Radiological Findings from Dual Energy CT and PET/CT
Published on: January 22, 2018
[Two cases of advanced and recurrent gastric cancer responding markedly to TS-1/CDDP therapy]
Tomoharu Ishiyama1, Takashi Nakamura, Tomonobu Suzuki
1Dept. of Surgery, Yamagata Prefectural Shinjo Hospital.
Abstract:
Case 1: A 77-year-old woman with advanced gastric cancer and peritoneal dissemination was treated with TS-1/CDDP therapy. TS-1 (100 mg/day) was orally administered for 21 days and CDDP (70 mg/body) was administered intravenously on day 8. After 2 courses reduction in size of the primary carcinoma was observed (PR). The duration of the PR and the survival time were over 1 year and 6 months. Case 2: A 77-year-old woman with recurrent abdominal and liver metastasis from advanced gastric cancer was treated with TS-1/CDDP therapy. TS-1 (100 mg/day) was orally administered for 21 days and CDDP (80 mg/body) was administered intravenously on day 8. The reduction was judged to be CR for the liver metastasis and PR for the abdominal tumor (total judgment: PR). The duration of the PR and the survival time were over 1 year and 5 months. It is suggested that TS-1/CDDP chemotherapy is useful for advanced and recurrent gastric cancer.