Arachnoiditis is inflammation of the arachnoid, one of the membranes that surrounds and protects the nerves of the spinal cord. It can cause the spinal nerve roots to stick together, leading to ongoing pain, muscle cramps, and bladder or bowel changes. An MRI may show changes in the arrangement of nerve roots within the spinal canal consistent with this condition. Identifying arachnoiditis early may allow for pain management strategies and treatment to help slow progression before symptoms become more severe.
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