1. Acquired cochlear nerve deficiency in a 14-year-old patient with hearing loss after meningococcal meningitis at the age of 6 months (patient A3).
Acquired cochlear nerve deficiency in a 14-year-old patient with hearing loss after meningococcal meningitis at the age of 6 months (patient A3). Bilateral labyrinthitis ossificans was shown by CT (not shown).A, Axial T2-weighted fast spin-echo MR image of the right side shows loss of the normal high-signal-intensity CSF in the labyrinth. The asterisk indicates the vestibule; arrow, arterior inferior cerebellar artery (AICA) loop.B, Corresponding oblique sagittal image shows three nerves in the IAC. The cochlear nerve cannot be identified. Note the normal size of the IAC in this acquired cochlear nerve deficiency. Fn indicates the facial nerve; Vsn, superior vestibular nerve; and Vin, inferior vestibular nerve.
Christine M. Glastonbury et al. AJNR Am J Neuroradiol 2002;23:
©2002 by American Society of Neuroradiology