If you are experiencing a medical emergency please dial 911 immediately
Lung cancer means that cells in your lungs are growing abnormally and out of control. The cancer cells can spread to other parts of your body. Most lung cancer is caused by tobacco smoke.
Last Revised: October 9, 2012
Author: Healthwise Staff
Medical Review: E. Gregory Thompson, MD - Internal Medicine & Michael Seth Rabin, MD - Medical Oncology
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