ZEPHYR / SCIENCE PHOTO LIBRARY ZEPHYR / SCIENCE PHOTO LIBRARY
Treated intracranial berry aneurysm, coloured X-ray. Front view of the skull of a 44-year-old patient with an intracranial berry, or saccular, aneurysm (white) of the anterior communicating artery of the brain. A platinum coil (white) has been inserted to block the flow of blood from the artery. This is a minimally invasive procedure. Aneurysms are localised, blood-filled balloon-like bulges in the wall of a blood vessel. They form when the wall is weakened by disease or another cause. If they burst there is the danger of death or other complications due to severe hemorrhaging (bleeding).
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