Tympanic membrane changes in central tympanic membrane perforations

Mehmet F. Oktay, Sebahattin Cureoglu, Patricia A. Schachern, Michael M. Paparella, Shin Kariya, Hisaki Fukushima

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

Purpose: The objective of this study was to evaluate the histopathological changes in central tympanic membrane perforations caused by chronic otitis media without cholesteatoma. Materials and methods: Twenty-nine temporal bones from 25 patients (13 male patients and 12 female patients) with central tympanic membrane perforations-18 chronic otitis media with perforation and 11 chronic otitis media with perforation caused by ventilation tubes-and 30 aged-matched normal temporal bones were included in this study. A scale was used to evaluate the extension of the migration of stratified squamous epithelium in the inner surface of the tympanic membrane. The thickness of tympanic membranes was measured halfway between the annular ligament and the perforation and compared with that of the normal bones. The presence of tympanosclerosis and papillary projections of squamous epithelium was also noted. Results: The extension of the migration of stratified squamous epithelium in the inner surface of the tympanic membrane was observed in 11 of the 29 perforations (38%). The thickness of tympanic membranes was significantly different between the perforation groups and the control group. Of the 29 tympanic membranes, 13 (44%) had tympanosclerosis and 8 (28%) revealed papillary projections of squamous epithelium. Conclusions: Our study shows that a central tympanic perforation should not merely be considered as a simple defect. Most of the tympanic membranes showed one or more signs of sequelae or persistent abnormalities such as tympanosclerosis, papillary projections, thickening, and ingrowth without significant differences between the 2 central perforation groups.

Original languageEnglish (US)
Pages (from-to)393-397
Number of pages5
JournalAmerican Journal of Otolaryngology - Head and Neck Medicine and Surgery
Volume26
Issue number6
DOIs
StatePublished - Nov 2005

Bibliographical note

Funding Information:
This work was supported in part by NIH-NIDCD grant P30 DC04660, by the Lions International of Minnesota, and the International Hearing Foundation.

Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.

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