58-year-old man with acute and complete peripheral facial nerve palsy, hearing loss, and vertigo for 28 hours. 58-year-old man with acute and complete.

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Presentation transcript:

58-year-old man with acute and complete peripheral facial nerve palsy, hearing loss, and vertigo for 28 hours. 58-year-old man with acute and complete peripheral facial nerve palsy, hearing loss, and vertigo for 28 hours. A and B, Postcontrast transverse (A) and coronal (B) T1-weighted images show abnormal enhancement of the right facial nerve in the distal intrameatal (1) and labyrinthine (2) nerve segments with normal enhancement of the tympanic nerve segment (3). There is also abnormal enhancement of the geniculate ganglion (4), the pontine colliculus facialis (5), the vestibulocochlear nerve (6), and the basal turn of the cochlea (7). The dura covering the internal auditory canal (8) is also enhanced.C, Transverse T2-weighted image through the brain stem shows no hyperintense signal in the pontine lesion, and the signal intensity within the right internal auditory canal is reduced. Sabine Sartoretti-Schefer et al. AJNR Am J Neuroradiol 1999;20:278-280 ©1999 by American Society of Neuroradiology