Glossopharyngeal neuralgia caused by adhesive arachnoid.

Glossopharyngeal neuralgia (GPN) is an uncommon disorder characterized by a severe lancinating pain commonly induced by swallowing. When the pain is resistant to medical management, surgical treatment such as microvascular decompression (MVD) or partial rhizotomy is performed. We report a case of glossopharyngeal neuralgia caused by adhesive arachnoid, in which pain disappeared solely by dissection of the peripheral arachnoid around the glossopharyngeal nerve.