STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY
Lung cancer cell. Coloured scanning electron micrograph (SEM) of a lung cancer cell. Typically, a cancer cell is large with a rough surface due to its many cytoplasmic projections. It proliferates in a chaotic, uncontrolled manner, and may form clumps, which are termed malignant tumours, that may invade and destroy surrounding tissues. Lung cancer is a common form of cancer, frequently associated with smoking tobacco and exposure to industrial air pollutants. It causes a cough and chest pain and may spread to other areas of the body. Treatment includes removal of part or all of the affected lung, with radiotherapy and chemotherapy. Magnification unknown.
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