Lung asbestos bodies were searched for in 65 subjects with pulmonary cancer and without occupational exposure and in 65 matched controls. No significant association between the presence of asbestos bodies and occurrence of lung cancer was found. Nevertheless, adenocarcinoma was significantly associated with the presence of lung asbestos bodies in men. The latter result suggest that, even in non-professionally exposed subjects, the possibility of relationships between asbestos exposure and lung cancer cannot be excluded.