GCA / SCIENCE PHOTO LIBRARY GCA / SCIENCE PHOTO LIBRARY
Brain oligodendroglioma. Coloured magnetic resonance imaging (MRI) scan of a rare type of malignant brain tumour called an oligodendroglioma (orange/white, left). This is a horizontal slice across the head. The tumour has displaced a large volume of normal tissue and is spreading through the brain. Oligodendrogliomas are slow-growing, primary tumours that mainly affect young or middle-aged adults. Like other brain tumours, they can cause a variety of symptoms: headaches, vomiting, epileptic seizures and disturbance of movement, speech, vision, hearing and mental functioning. Treatment includes surgical removal, radiotherapy and drugs.
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