A and B, HRCT of petrous temporal bones.

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Presentation transcript:

A and B, HRCT of petrous temporal bones. A and B, HRCT of petrous temporal bones. Dislocation of the incudomalleal articulation of each ossicular chain is demonstrated. The remainder of the ossicular chain continuity was maintained—specifically the congruity of the stapes footplate with the oval window was intact. Note the opacification of the mastoid air cells as well as in the region of the aditus ad antrum of the right middle ear, consistent with hemorrhagic effusions. No fractures of the petrous temporal bones were present. C. Offiah et al. AJNR Am J Neuroradiol 2007;28:974-975 ©2007 by American Society of Neuroradiology