Unenhanced CT scan of the paranasal sinuses in oblique coronal reformat along the external auditory canal shows markedly thickened cartilaginous canal.

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Presentation transcript:

Unenhanced CT scan of the paranasal sinuses in oblique coronal reformat along the external auditory canal shows markedly thickened cartilaginous canal walls (white arrows), whereas the bony canal (black arrow) is spared. Unenhanced CT scan of the paranasal sinuses in oblique coronal reformat along the external auditory canal shows markedly thickened cartilaginous canal walls (white arrows), whereas the bony canal (black arrow) is spared. Laura E. Faix, and Barton F. Branstetter IV AJNR Am J Neuroradiol 2005;26:2134-2136 ©2005 by American Society of Neuroradiology

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