ZEPHYR / SCIENCE PHOTO LIBRARY ZEPHYR / SCIENCE PHOTO LIBRARY
Spinal arachnoiditis. Magnetic resonance imaging scan (MRI) of a section through the lumbar spine of a 32-year-old patient affected by arachnoiditis, showing inflammation (bright, vertical) around the spinal cord. Arachnoiditis is inflammation of the arachnoid mater, one of the meninges membranes that surround the brain and spinal cord of the central nervous system.
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