IMPORTANCE Adenoid cystic carcinomas (ACCs) are relatively rare tumours, notorious for wide local infiltration and perineural spread. Perineural extension commonly occurs along branches of the trigeminal and facial nerves, and its presence represents a poor prognostic factor with implications for treatment approach. OBSERVATIONS We report the case of a 61-year-old female presenting with worse...

The human trigeminal system mediates facial pain and somatosensory processing. The anatomic location of neuronal substrates and axonal pathways of the trigeminal system have previously been characterized with conventional in vitro methods. The present investigation implemented diffusion tensor imaging (DTI) and probabilistic tractography to first segment the peripheral trigeminal circuitry, tri...

Cranial nerve blocks (CNBs) have been used for the acute and preventive treatment of a variety headaches, including migraine. The effectiveness CNBs in migraine is usually observed beyond duration block, possibly due to central pain modulation. most target greater occipital nerve. Other commonly targeted nerves are lesser various branches trigeminal nerve, supratrochlear, supraorbital, auriculo...

BACKGROUND Microvascular compression of the trigeminal nerve root is a major cause of most trigeminal neuralgia (TN) in patients; however, no reliable animal model to further study the pathogenesis of TN currently exists. OBJECTIVE Our objective was to establish a novel and practical animal model for TN by chronic compression of the trigeminal (CCT) nerve root in rats, which would provide a b...

Thirty-five patients with trigeminal neuralgia underwent microvascular decompression. Complete remission was obtained in 33 patients, while one was fair and another unchanged postoperatively. The clinical and operative findings were reviewed, analyzing the direction of vascular compression of the trigeminal nerve and the distribution of pain in the peripheral regions. There were some weak corre...

Evoked potential was recorded by needle electrode from the oculomotor nucleus in decerebrate cats, following electrical stimulation of the inferior oblique nerve. The evoked potential was usually triphasic, but complex potential with the second and third negative leaves, or with long latency negative waves, was incidentally recorded depending upon the position of the recording electrode. In the...

Physical and chemical agents acting on the ocular surface (extreme environmental temperatures, wind, foreign bodies, and chemicals) elicit conscious sensations and reflex motor and autonomic responses (blinking, lacrimation, conjunctival vasodilation) aimed at protecting the eye from further injury. Sensory nerve terminals of trigeminal ganglion neurons innervating the cornea and conjunctiva ar...