MOREDUN ANIMAL HEALTH LTD / SCIENCE PHOTO LIBRARY MOREDUN ANIMAL HEALTH LTD / SCIENCE PHOTO LIBRARY
Lung cancer. False-colour scanning electron micrograph of a tiny lung tumour growing in an alveolus (one of the blind-ended air sacs which make up the lungs). The individual cancer cells are coated with microscopic, hair-like structures known as microvilli. Magnification: x530 at 35mm size.
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