GCA / SCIENCE PHOTO LIBRARY GCA / SCIENCE PHOTO LIBRARY
Cancer of lung. Coloured computed tomography (CT) scan showing the left lung (right of image) affected by cancer. In this transverse section of the chest the lungs are coloured dark blue, the heart chambers yellow and the bony tissue is pink. The light blue areas in the left lung show the cancerous formations. This is one of the most common forms of cancer. It may spread locally to tissues surrounding the lungs or to other parts of the body such as the liver, brain and bones. If the cancer is diagnosed at an early stage pneumonectomy (removal of the lung) may be performed. Anticancer drugs or radiotherapy may be used to contain the spread of the tumour.
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