Lung cancer is one of the leading cancers in India and usually originates in the airway passages of the respiratory tract. It can also begin in other parts of the lung such as the cells in the bronchioles and alveoli. In 2010, an estimated 5.56 lakh patients died of cancer in India. Among these deaths, approximately 65,000 were men diagnosed with lung cancer.
The most common types of lung cancer are small cell lung cancer (SCLC) and non-small cell lung cancer (NSCLC). Although highly uncommon, both cell types can simultaneously be affected with cancer. Approximately 85-90% of lung cancers are diagnosed as NSCLC.