DU CANE MEDICAL IMAGING LTD / SCIENCE PHOTO LIBRARY DU CANE MEDICAL IMAGING LTD / SCIENCE PHOTO LIBRARY
Brain haemorrhage, coloured computed tomography (CT) scan. The front of the brain is at top, and a large mass of blood (haematoma, pink) is seen at upper left in the frontal lobe. Bleeding (haemorrhage) in the brain occurs when a blood vessel, such as an artery, ruptures. It may be caused by a head injury, high blood pressure or vascular disease. In this case a tree fell on the patient's head. The area of the brain supplied by the ruptured artery may die due to lack of oxygenated blood, leading to a stroke.
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