Posterior condylar canal dural arteriovenous fistula as a rare cause of glossopharyngeal neuralgia: A case report.

Although glossopharyngeal neuralgia caused by dAVF is rare, it can present due to intracranial lesions located adjacent to the glossopharyngeal nerve or vagus nerve. Brain MRI is therefore required to identify secondary causes in all patients with glossopharyngeal neuralgia.