CNRI / SCIENCE PHOTO LIBRARY CNRI / SCIENCE PHOTO LIBRARY
Lung cancer. Coloured magnetic resonance imaging scan of a patient's chest showing a malignant tumour (pink) in the lung on the right. The black area in the chest represents normal lung tissue. Lung cancer is one of the most common and dangerous forms of cancer. Fewer than 10% of patients survive for five years after diagnosis. The main cause is cigarette smoking. Secondary lung cancer, resulting from spread of cancer cells from elsewhere in the body, is also a common cause. Treatment includes surgical removal of all or part of the lung, chemotherapy and radiotherapy.
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