AJDRAJNR - American Journal of Neuroradiology

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American Journal of Neuroradiology, Vol 16, Issue 8 1703-1706, Copyright © 1995 by American Society of Neuroradiology

ARTICLES

High-resolution CT of mastoid sinus pneumocele with external auditory canal stenosis

R Lichtenberg and EJ Russell
Department of Radiology, Methodist Hospital, Merrillville, Ind., USA.

A 34-year-old man presented with tinnitus and conductive hearing loss. CT demonstrated an expansile, air-containing cavity contiguous with mastoid air cells, narrowing the external auditory canal. This is a case of symptomatic pneumocele resulting in an air collection beneath external canal lining, possibly related to an abnormality in mastoid fusion.




Copyright © 2008 by the American Society of Neuroradiology. Print ISSN: 0195-6108 Online ISSN: 1936-959X