Lung carcinoma; Bronchogenic carcinoma
The term lung cancer is used for malignant epithelial tumors arising from the respiratory mucosa (bronchi, bronchioles, and alveoli). Mesotheliomas, lymphomas, and stromal tumors (sarcomas) are distinct from epithelial lung cancers.
Lung cancer is the leading cause of cancer death worldwide with over 1 million deaths each year. The disease is largely preventable as the majority of cases are attributable to smoking. However, global statistics estimate that 15% of lung cancer cases in men and 53% in women occur in never smokers.