MOREDUN ANIMAL HEALTH / SCIENCE PHOTO LIBRARY MOREDUN ANIMAL HEALTH / SCIENCE PHOTO LIBRARY
Lung cancer. 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: x4000 on 8x10" print.
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