What is Lung Cancer?

Cancer is a term used to describe disease in which the body's cells become abnormal and divide without control.  The abnormal cells may spread to other parts of the body through direct invasion (cell to cell) or by means of the bloodstream and lymph nodes.  As cancer progresses, it can lead to injury and sometimes death.  Lung cancers start in the lungs and over time, if not detected early enough, will then spread to nearby lymph nodes and then distant organs. Lung cancer remains one of the most common cancers that affects both men and women