Lung cancer. Section through a gross specimen showing malignant (cancerous) tumours in the bronchial (airway) system of a lung. Blood clots (dark red)

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Lung cancer. Section through a gross specimen showing malignant (cancerous) tumours in the bronchial (airway) system of a lung. Blood clots (dark red) are also seen in the pulmonary blood vessels. The main cause of lung cancer is cigarette smoke.

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Photo credit: © MEDIMAGE/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
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