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Computed tomography of the temporal bone in tuberculous otitis media

Published online by Cambridge University Press:  29 June 2007

Tomoyuki Hoshino*
Affiliation:
Department of Otolaryngology, Hamamatsu University School of Medicine, Japan
Hiroshi Miyashita
Affiliation:
Department of Otolaryngology, Hamamatsu University School of Medicine, Japan
Yoshihiro Asai
Affiliation:
Department of Otolaryngology, Hamamatsu University School of Medicine, Japan
*
Tomoyuki Hoshino, M.D., Department of Otolaryngology, Hamamatsu University School of Medicine, 3600 Handa-cho, Hamamatsu, Shizuoka 431-31, Japan. Fax: 053-435-2253.

Abstract

Nine cases of tuberculous otitis media were treated by us over the past 10 years. Six patients presenting with large tympanic membrane perforations were treated for suppurative otitis media at various ENT clinics. The remaining three patients presented without perforation. Intractable otorrhoea, aggravation of hearing loss, dizziness, and in one case facial palsy, resulted in eventual referral to us. Histological examination revealed a tuberculous granulation, confirming the diagnosis in most cases. CT in four cases with profound sensorineural hearing loss showed bone destruction of the otic capsule around the oval window and the promontory. Changes noted included a notch in one case, disappearance of the bony contour around the hook in two cases, and a distinct fistula in the final case. A cochlear fistula seemed to be characteristic of advanced tuberculous otitis media.

Type
Radiology in Focus
Copyright
Copyright © JLO (1984) Limited 1994

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Footnotes

This paper was presented at the 3rd Japanese Otological Society Meeting, Nagoya, November 1993

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