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The incidence of tympanogenic labyrinthitis ossificans

Published online by Cambridge University Press:  23 June 2014

H-Y Lin ,
Y-K Fan ,
K-C Wu ,
M-T Shu ,
C-C Yang  and
H-C Lin
H-Y Lin
Affiliation:
Department of Otolaryngology-Head and Neck Surgery, Mackay Memorial Hospital Hsinchu Branch, Taiwan
Y-K Fan
Affiliation:
Department of Radiology, Mackay Memorial Hospital Hsinchu Branch, Taiwan
K-C Wu
Affiliation:
Department of Otolaryngology-Head and Neck Surgery, Mackay Memorial Hospital Hsinchu Branch, Taiwan
M-T Shu
Affiliation:
Department of Otolaryngology-Head and Neck Surgery, Mackay Memorial Hospital Taipei Branch, New Taipei City, Taiwan
C-C Yang
Affiliation:
Department of Otolaryngology-Head and Neck Surgery, Mackay Memorial Hospital Taipei Branch, New Taipei City, Taiwan Department of Audiology and Speech Language Pathology, Mackay Medical College, New Taipei City, Taiwan
H-C Lin*
Affiliation:
Department of Otolaryngology-Head and Neck Surgery, Mackay Memorial Hospital Taipei Branch, New Taipei City, Taiwan Department of Audiology and Speech Language Pathology, Mackay Medical College, New Taipei City, Taiwan
*
Address for correspondence: Dr H-C Lin, Departments of Otolaryngology-Head and Neck Surgery, Mackay Memorial Hospital, 92 Chung-Shan N Road, Sec. 2, Taipei 10499, Taiwan Fax: +886-2-25433642 E-mail: hclin59@ms29.hinet.net
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Abstract

Objective:

To estimate the incidence of tympanogenic labyrinthitis ossificans.

Methods:

The records of patients treated with mastoidectomy for various tympanogenic aetiologies from January 2007 to December 2011 were retrospectively reviewed. Patients whose high-resolution computed tomography scans showed evidence of labyrinthine calcification of the temporal bone were enrolled. Patients with a history of head and neck cancer, meningitis, and otosclerosis, and patients with cochlear implants, were excluded from this study.

Results:

A total of 195 patients were enrolled in this study; 4 of the patients presented with calcification in the inner ear. Therefore, the incidence of tympanogenic labyrinthitis ossification was 2 per cent. The computed tomography findings revealed: (1) cochlear calcifications of the basal and middle turn in two patients; and (2) vestibular, superior semicircular canal, posterior semicircular canal and lateral semicircular canal calcification in one, four, three and two patients, respectively.

Conclusion:

The incidence of tympanogenic labyrinthitis ossification in patients who had undergone a mastoidectomy was 2 per cent.

Keywords

Otitis MediaCholesteatomaLabyrinthitis OssificansSemicircular CanalIncidence
Type
Main Articles
Information
The Journal of Laryngology & Otology , Volume 128 , Issue 7 , July 2014 , pp. 618 - 620
Copyright
Copyright © JLO (1984) Limited 2014 

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