K H FUNG / SCIENCE PHOTO LIBRARY K H FUNG / SCIENCE PHOTO LIBRARY
Lung cancer. Coloured 3D computed tomography (CT) scan footage of the virtual view seen inside the lungs of a patient with lung cancer. The cancerous areas are seen in orange and red. Cancer cells divide in an uncontrolled fashion and migrate to invade other tissues. Treatment is with surgery if the cancer is still localised, and chemotherapy and radiotherapy if it has spread.
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