[A case of para-aortic lymph node metastasis from gastric cancer treated with chemoradiotherapy].

A 64-year-old man was diagnosed as having advanced gastric cancer with peritoneal and para-aortic lymph node metastases. He received 2 courses of chemotherapy with S-1 and cisplatin( CDDP) and 5 courses of combination chemotherapy with capecitabine, CDDP, and trastuzumab. The peritoneal and para-aortic lymph node metastases disappeared after chemotherapy, and subsequently, total gastrectomy was performed (pT2N3aM0, stage IIIA). Although the patient received combination chemotherapy with capecitabine and trastuzumab, para-aortic lymph node recurrence was noted 6 months after the operation. Radiation therapy at a total dose of 50 Gy targeted at the para-aortic lymph node metastasis along with S-1 and trastuzumab chemotherapy was administered. No serious adverse effects were observed during chemoradiotherapy. Following chemoradiation therapy, tumor recurrence was not observed. Therefore, chemoradiotherapy is considered an effective treatment for lymph node metastasis from gastric cancer.