Monday, January 17, 2011

Lung cancer is the uncontrolled growth of abnormal cells, which may occur in the lining of the trachea, bronchi, bronchioles, or alveoli. Ninety five percent of lung cancers are bronchogenic (arise from the epithelial lining of the bronchial tree). Cause for Lung Cancers Carcinogenesis, Initiation by a carcinogen (cancer-causing agent), for example, cigarette smoke, asbestos,...