Lung cancer in never smoker a review of 3 cases

Abstract

Lung cancer is a common cause of cancer related death in men and women globally and the rising incidence has continued unabated for more than three decades. The principal etiologic factor has been exposure to cigarette smoke, either actively or passively. Currently there is an observed incidence of lung cancer in population never exposed to cigarette smoke with histologic preponderance of adenocarcinoma. Lung cancers in never smokers represent a distinct epidemiological and clinical disease different from lung cancer associated with smokers. Report about this disease entity is rare in our environment. We report the management and outcome of lung cancer in never smokers in three patients.