[A case of advanced gastric cancer responding to neoadjuvant chemotherapy with S-1 and CDDP combination].

The patient is a 75-year-old woman who received 2 courses of neoadjuvant chemotherapy (NAC) with S-1/CDDP for advanced gastric cancer and para-aortic lymph node metastasis. After completion of the second course, both the primary tumor and lymph node metastases practically disappeared. Later, total gastrectomy was performed. Histopathological examination revealed cancer cells remaining in just one part of subserosa (ss), and no lymph node metastases were detected. The postoperative course was favorable, and the patient is currently attending the outpatient clinic.