[A case of postoperative multiple pulmonary metastases of non-small-cell lung cancer successfully treated with S-1].

We report a case of postoperative multiple pulmonary metastases of NSCLC successfully treated with S-1. A 72-year-old man underwent rt. lower lobectomy + ND 2 a by VATS. The histopathological examination showed squamous cell carcinoma, pT4 (satellite nodules in same lobe) N0M0. Multiple pulmonary metastases appeared 3 months after operation. We started combination chemotherapy with S-1 and CBDCA. S-1 (100 mg/body) was administered on days 1-21. CBDCA (AUC=5.0) was administered on day 8. Multiple pulmonary metastases almost disappeared after 2 courses of combination chemotherapy. After 6 courses of combination chemotherapy with S-1 and CBDCA, we then converted to S-1 only. Every cycle was repeated every 5 weeks. One year later, there was no sign of disease progression. S-1 is considered to be effective and safely administered in patients with NSCLC.