Axial 1mm thick gadolinium enhanced T1 weighted image through the geniculate ganglion (white arrow). Axial 1mm thick gadolinium enhanced T1 weighted.

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Iı Trigeminal ganglion Oval foramen Petrous temporal bone V3 Mandibular MOTOR to masticatory mm SENSORY to lower jaw, tongue, cheek and ear V Motor Pons.

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Presentation transcript:

Axial 1mm thick gadolinium enhanced T1 weighted image through the geniculate ganglion (white arrow). Axial 1mm thick gadolinium enhanced T1 weighted image through the geniculate ganglion (white arrow). Right lower corner shows the pons, fourth ventricle, middle cerebellar peduncle, and part of the cerebellum; left upper corner shows temporal bone and masticatory muscles. Enhancement of the facial nerve can be seen at the fundus of the internal auditory canal (black arrow), at the level of the geniculate ganglion (white arrow) and in the tympanic segment of the facial nerve (white arrowhead). Moreover, enhancement can be seen along the course of the superficial greater petrosal nerve (black arrowheads) following the border of the petrous apex and the superolateral border of the internal carotid artery. L J Vanopdenbosch et al. J Neurol Neurosurg Psychiatry 2005;76:1017-1018 ©2005 by BMJ Publishing Group Ltd