Long-term survival case of advanced gastric cancer with paraaortic lymph node metastasis and peritoneal metastasis from S-1/CDDP combination therapy after reductive operation
Abstract
A 72-year-old female patient with type 5 gastric cancer in the upper gastric region underwent surgery. Due to paraaortic lymph node metastasis (#16a1, #16a2) and peritoneal metastasis, total gastrectomy and D0 lymph node dissection were performed. Surgical and pathological findings were poorly differentiated adenocarcinoma, INFbeta, pT3(SE), PM (-), DM (-), ly0, v2, sN3 (#7, #9, #16a1-a2), M0, stage IV. The patient was administered S-1 for 2 weeks at 80 mg/day, received 24-hour continuous intravenous infusion of 80 mg/day on day 8, and then discontinued chemotherapy for 2 weeks, which was regarded as one course. After one course, CT scan showed that the paraaortic lymph node metastasis had almost entirely disappeared. However, due to grade 3 neutropenia, and grade 2 nausea and anorexia in the first course, the treatment was changed to oral administration of UFT (400 mg/day) , which was discontinued one month later due to anorexia. The patient has been in good health without a recurrence for 4 years after surgery. This case suggests that reduction surgery combined with a S-1 regimen is an effective treatment for long-term survival.
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