STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY
Lung cancer cells, coloured scanning electron micrograph (SEM). 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 that are termed malignant tumours. These 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: x650 at 6x7cm size.
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