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Bilateral Petrous Internal Carotid Artery Pseudoaneurysms Presenting with Sensorineural Hearing Loss

Catherine J. Hwanga, Gul Moonisb, Robert W. Hurstb, Neil Hocksteinc and Douglas Bigelowc

a School of Medicine, University of Pennsylvania Medical Center, Philadelphia, PA
b Department of Radiology, University of Pennsylvania Medical Center, Philadelphia, PA
c Department of Otorhinolaryngology, University of Pennsylvania Medical Center, Philadelphia, PA



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  		FIG 1. Axial (A) and coronal (B) CT images acquired through the temporal bone demonstrate an erosive lesion involving the right petrous carotid canal posteromedially with erosion into the cochlea (black arrowhead). The horizontal petrous carotid canal is indicated by the white arrow. Similar changes were seen on the left.



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  		FIG 2. Images from right (A) and left (B) common carotid artery injections demonstrate bilateral aneurysms of the horizontal petrous carotid arteries (black arrowhead).





Copyright © 2009 by the American Society of Neuroradiology. Print ISSN: 0195-6108 Online ISSN: 1936-959X