Question about Glossopharyngeal neuralgiadoes a mri scan of the brain (not mra ) show compression either of the Glossopharyngeal nerve and trigeminal nerves ? or the radiologist would have to go and look for compression?
MRI brain scan may suggest compression of the trigeminal nerve, but does not prove it. Many healthy people have blood vessels close to the trigeminal nerve. If drug treatment of trigeminal neuralgia is disappointing then surgical decompression is the treatment of choice but it is only at the time of surgery that one can be sure of there is significant compression (grooving of the nerve). The glossopharyngeal nerve is more difficult; glossopharyngeal neuralgia is much less common than trigeminal neuralgia. You should expect your specialist to be able to distinguish these conditions.
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