Temporal bone CT in the Pöschl (A) and Stenvers (B) planes demonstrating a large defect (arrows) in the roof of the right superior semicircular canal.

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Presentation transcript:

Temporal bone CT in the Pöschl (A) and Stenvers (B) planes demonstrating a large defect (arrows) in the roof of the right superior semicircular canal. Temporal bone CT in the Pöschl (A) and Stenvers (B) planes demonstrating a large defect (arrows) in the roof of the right superior semicircular canal. C, Temporal bone CT Pöschl reconstruction demonstrates dehiscence of the left superior semicircular canal (arrow) into the superior petrosal sinus (S). M.-L. Ho et al. AJNR Am J Neuroradiol 2017;38:2-9 ©2017 by American Society of Neuroradiology