We report a case of unresectable gastric cancer with para-aortic lymph node metastasis, and multiple liver, lung, and bone metastases leading to conversion therapy. A 70s-year-old man visited previous doctor with epigastralgia. He was diagnosed as stage Ⅳ gastric cancer with para-aortic lymph node metastasis, and multiple liver, lung, and bone metastases by upper gastrointestinal endoscopy, contrast enhanced computer tomography(CT), and positron emission tomography(PET). After a regimen consisting of 6 courses of capecitabine plus cisplatin plus trastuzumab, para-aortic lymph node metastasis and liver, lung, and bone metastases were absent in CT and PET images. So, he visited our department for surgery treatment. We judged curative resection could be achieved for gastric cancer. Total gastrectomy, D2 and paraaortic lymphadenectomy, and cholecystectomy were performed. The histopathological examination of the resected specimen revealed the efficacy of chemotherapy was Grade 2b. The patient was discharge 14 days after the operation, and capecitabine plus trastuzumab was started as adjuvant chemotherapy, and the patient remains alive without recurrence 11 months after surgical treatment.
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