ZEPHYR / SCIENCE PHOTO LIBRARY ZEPHYR / SCIENCE PHOTO LIBRARY
Brain cancer. Coloured composite image of a diffusion tensor imaging (DTI) scan of the brain and a 3D computed tomography (CT) scan of the skull of a 35 year old patient with a glioblastoma (dark area at left). The colours within the brain show the orientation of the white matter nerve fibres. Nerve fibres running right and left are red, those running front and back are blue, and those running interior and exterior are green. A glioblastoma is a particularly malignant brain cancer that arises from the supporting glial cells in the brain. Treatment is with a combination of surgery and radiotherapy, but the prognosis is poor.
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