Brain arteriovenous malformation (AVM). Magnetic resonance imaging (MRI) scan of an axial (horizontal) section through the brain of a 31 year old man. The image shows a right thalamic AVM as a dark grey mass on a white background (centre). The black areas within it indicate the damage caused by the AVM; they are flow voids,areas that no longer receive blood flow. An AVM is a congenital malformation of the blood vessels (arteries and veins) that can rupture and bleed inside of the head and cause seizures,headaches,stroke-like symptoms,and other fatal complications. MRI uses radio waves and a magnet to obtain "slice" body images | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Fraser, Simon |
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