Adjuvant chemotherapy for advanced gastric cancer has not yet been established. We report a patient with advanced gastric cancer responding remarkably to neo-adjuvant combination chemotherapy consisting of CPT-11 and S-1. The patient was a 69-year-old woman diagnosed with large type 3 advanced gastric cancer with esophageal invasion and having No.3 lymph node metastasis (cT3, cN1, cM0, cStage IIIA), treated with 2 courses of CPT-11 plus S-1 as neo-adjuvant chemotherapy. Computed tomography after neo-adjuvant chemotherapy showed improvement of gastric wall thickness and reduction of lymph node metastasis. Subsequently, she underwent an operation. There was no lymph node swelling,so we performed curative surgery consisting of total gastrectomy, splenectomy, cholecystectomy, and D 2 lymph node dissection. Histological diagnosis was pT2 (MP), pN1, pStage II, and estimation of the histological change by chemotherapy was Grade 2. The course after surgery was good, and she was treated by S-1 after discharge. To date, 8 months after surgery, there is no evidence of recurrence. Combination chemotherapy consisting of CPT-11 plus S-1 can be performed safely as a neo-adjuvant treatment, and may be an effective treatment modality for advanced gastric cancer.
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