Glioma brain cancer. Coloured magnetic resonance imaging (MRI) scan of a brain in axial section, showing a glioma brain tumour. Glioma is a common brain cancer, comprising about 60% of all primary brain tumours that originate in the brain rather than being spread from elsewhere. Here, the tumour is at upper centre (black) in a cerebral hemi- sphere of the brain (red/yellow). Gliomas arise from glial cells which form the connective tissue of the brain. Brain cancers are dangerous because of nerve cell destruction and build-up of pressure as the tumour expands. Symptoms may include muscle weakness, and loss of vision or speech. When possible tumours are removed by surgery. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Camazine, Scott |
Taille de l’image : | 3748 px × 2448 px |
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