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KMID : 0390220000110020249
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Journal of Clinical Otolaryngology, Head and Neck Surgery
2000 Volume.11 No. 2 p.249 ~ p.255
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Congenital Middle Ear Cholesteatoma : A Clinical and Gross Pathological Review
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Abstract
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Background and Objectives : Gross-pathologicall, there are two types of congenital middle ear cholesteatoma
: a closed keratotic cyst and an open matrix. This study aimed to analyzed clinical characteristics of each
pathologic type of congenital cholesteatoma and to facilitate better understanding of its pathogenesis. Materials
and Method : We reviewed retrospectively 21 patients seen in the past 6 years between May 1994 to April 2000
who were diagnosed as congenital middle ear cholesteatoma under its definite criteria. This study was done by
analyzing the patients' history, drum finding, temporal bone CT finding, operative finding and pathologic
finding. Results : The open type congenital cholesteatoma which usually originated from posterosuperior
quadrant of the mesotypanum showed higher degree of hearing loss and more frequent unusual presentation,
and detected at an older age than the closed type congenital cholesteatoma. Conclusion : The pathogenesis of
open type congenital cholesteatoma may be different from that of closed type congenital cholesteatoma.
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KEYWORD
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