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  • Title: [Stage IV gastric cancer patient who underwent palliative gastrectomy showing complete response to induction therapy with methotrexate plus 5-fluorouracil and secondary treatment with oral TS-1].
    Author: Hiramatsu K, Mizukami Y, Momiyama M, Suzuki M, Niimi K, Nagashima T.
    Journal: Gan To Kagaku Ryoho; 2005 Aug; 32(8):1163-6. PubMed ID: 16121921.
    Abstract:
    We describe our experience with a patient who had undifferentiated gastric carcinoma with extensive lymph node metastasis, including para-aortic lymph-node metastasis, and had a complete response to induction therapy with methotrexate plus 5-fluorouracil (sequential therapy with MTX, 5-FU, and Leucovorin) and secondary treatment with oral TS-1. The patient was a 71-year-old woman with a massive gastric tumor (signet ring cell carcinoma), occupying most of the stomach. A computed tomographic (CT) scan revealed para-aortic, celiac, and common hepatic lymph-node metastases. Stage IV disease was diagnosed. Palliative total gastrectomy was performed to control bleeding and to improve oral intake of food. Two courses of induction therapy with MTX, 5-FU, and Leucovorin were started 3 weeks after surgery. A CT scan revealed residual lymph node metastasis. The response was assessed to be no change, but the levels of carcinoembryonic antigen (CEA) and carbohydrate antigen (CA) 19-9 improved from 7,028 ng/ml and 726 U/ml 3 weeks after surgery to 2,832 ng/ml and 281 U/ml, respectively. Secondary treatment with oral TS-1 was begun, and a CT scan showed distinct shrinkage of lymph-node metastases. There was no serious toxicity. The levels of CEA and CA19-9 decreased markedly to 2.9 ng/ml and 16 U/ml, respectively, about 6 months after surgery and remained at 3.7 ng/ml and 16 U/ml, respectively, about 1 year after surgery.
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