Lung Cancer
Definition of lung cancer: Cancer that forms in tissues of the lung, usually in the cells lining air passages. 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 2007:
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 New cases: 213,380
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 Deaths: 160,390