ZEPHYR / SCIENCE PHOTO LIBRARY ZEPHYR / SCIENCE PHOTO LIBRARY
Brain haemorrhage. Coloured 3D CT (computed tomography) angio scan of the brain of a 42 year old patient with a subarachnoid haemorrhage (SAH, paler area upper centre right). SAH is bleeding into the subarachnoid space - the area between the arachnoid membrane and the pia mater surrounding the brain. Here, it occurred from a ruptured aneurysm (ballooning) of the right middle cerebral artery (red).
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