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AJNR - American Journal of Neuroradiology

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American Journal of Neuroradiology 20:1973-1975 (11 1999)
© 1999 American Society of Neuroradiology

ARTICLE

Sound- and Pressure-Induced Vertigo Associated with Dehiscence of the Roof of the SuperiorSemicircular Canal

Andrew Mong^a, Laurie A. Loevner^,a, David Solomon^a and Douglas C. Bigelow^a

^a From the From the Departments of Radiology (L.A.L), Otorhinolaryngology/Head and Neck Surgery (L.A.L., D.S.), Neurology (D.S.), and the University of Pennsylvania School of Medicine (A.M.), University of Pennsylvania Medical Center, Philadelphia, PA.

Summary: In many types of peripheral vertigo, imaging is not part of the initial evaluation. We present a patient with sound- and pressure-induced vertigo associated with bony dehiscence of the roof of the superior semicircular canal. The diagnosis of this new entity can only be made by high-resolution coronal CT imaging of the temporal bones. In patients with this symptom complex, CT should be performed early in the diagnostic workup.

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