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Lung cancer

Lung cancer

Location of lungs in chest, showing lung cancer in upper lobe of a lung

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.

Current as of: April 29, 2020

Author: Healthwise Staff
Medical Review: E. Gregory Thompson MD - Internal Medicine
Kathleen Romito MD - Family Medicine
Michael Seth Rabin MD - Medical Oncology

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