STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY
Brain cancer cell. Scanning electron micrograph (SEM) of cancerous cell from a glioma. Gliomas are a type of tumour that arise from glial cells of the central nervous system. The most common site for gliomas is the brain. They can be either low or high-grade, with the latter having the worse prognosis. Magnification: x4000 when printed 10 centimetres wide.
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