SOVERIEGN, ISM / SCIENCE PHOTO LIBRARY SOVERIEGN, ISM / SCIENCE PHOTO LIBRARY
Arachnoiditis. Coloured magnetic resonance imaging (MRI) scan of a side view of the lumbar spine of a patient with arachnoiditis. This is the inflammation of the arachnoid membrane (centre, white), one of the membranes that surround and protect the spinal cord. The inflamed membrane presses on the nerves causing great pain and other symptoms that may include numbness and tingling in the legs, urinary incontinence and sexual dysfunction. Arachnoiditis is often a complication of spinal surgery, but it may also be caused by infection or injury. Treatment may include pain management and physiotherapy.
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