Pure V1 Trigeminal Neuralgia Caused by a Cryptic Trigeminal Neurinoma

摘要

Most idiopathic trigeminal neuralgias are caused by vascular compression at the root entry zone of the trigeminal nerve. (Dandy [1] and Jannetta [2]) We report a case of pure V1 trigeminal neuralgia caused by a small trigeminal neurinoma which had not been detected on preoperative neuroradiological examination.