ZEPHYR / SCIENCE PHOTO LIBRARY ZEPHYR / SCIENCE PHOTO LIBRARY
Dural tear following traffic accident. Computed tomography (CT) scan of a section through the head of a 27-year-old patient with nasal discharge following a head injury in a road traffic accident. This discharge is probably due to a tear in the dura mater, the outermost of the three layers of membranes (meninges) that surround the brain, allowing fluid from around the brain to leak into the sinuses.
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