We retrospectively evaluated 21 patients with resected lung metastases from head and neck cancers (oral cavity, pharynx, larynx, and others) in our department between April 2009 and December 2016. The 5-year overall survival after lung resection was 56.7％ and median survival time was 21 months, which was good compared with findings in the literature. Tumor size of lung metastatic lesion≥2.0cm was a significant prognostic factor (p＝0.0157). No independent prognostic factors were identified in multivariate analysis. Aggressive resection was suggested to contribute to prognosis, especially for pulmonary metastasis with diameter<2.0cm. These findings may have wide implications for social medicine.
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