Association of a squamous cell carcinoma of the head and neck and a pulmonary cancer is frequent: prevalence is about 5 to 10 percent. The purpose of this study was to present the survival analysis of 50 patients, previously treated for a squamous cell carcinoma of the head and neck, and then treated for a pulmonary cancer between 1979 and 1996. Four patients were excluded from the analysis. Five pulmonary cancers were synchronous with the head and neck cancer, 41 were metachronous. Metachronous pulmonary cancer was asymptomatic in 87 percent and the mean interval between the two cancers was 53 months. Surgery was performed for every pulmonary cancer. Operative mortality was 11 percent. The overall 5-year survival rate was 25%. Survival rates were linked with the T and N stages of the pulmonary cancer: 46% for T1, 13% for T2 and 0% for T3 and T4, 67% for N0 ans 0% for N1-3. Indications for surgical treatment of synchronous and metachronous pulmonary cancers are discussed.