What is Lung Cancer?

shutterstock_92613781[1]Cancer that forms in tissues of the lung, usually in the cells lining air passage. The two main types are small cell lung cancer and non-small cell lung cancer. These types are diagnosed based on how the cells look under a microscope. Estimated new cases and deaths from lung cancer (non-small cell and small cell combined) in the United States in 2012: New cases: 226,160, deaths: 160,340.[1]

[1] National Cancer Institute