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Clinical Study for Possibility of Congenital Origin In Acquired Middle Ear Cholesteatoma

Other Title
후천성 중이 진주종의 선천성 원인의 가능성에 대한 임상분석
박, 기현; 박, 홍준; 이, 동훈; 김, 보형; 오, 정훈
Imsang ibi inhukwa, 9(2):225-232, 1998
Journal Title
Imsang ibi inhukwa; Journal of clinical otolaryngology, head, and neck surgery; 임상이비인후과
Background and Objectives : Congenital cholesteatoma of the middle ear was a rare

clinical entity that classically presents as a pearly epidermal cyst seen behind the

normal tympanic membrane. In recent years, there has been an increasing number of

case reports and an apparent increase in congenital cholesteatoma in the middle ear. The

actual incidence of congenital cholesteatoma is substantially greater than the literature

indicates. Several otologists have speculated on the pathogenesis of acquired

cholesteatoma related to congenital origin. The issue may further be complicated by

extensive cases of congenital cholesteatoma that become infected and eventually show

perforation of the tympanic membrane and, therefore, those are classified as acquired

cholesteatomas. The aim of this study is to analyse suspicious congenital choleteatomas

and compare them with typical congenital cases, and to determine whether congenital

cholesteatomas can be a source of acquired cholesteatoma.

Materials and Methods : We reviewed 11 cases of middle ear cholesteatoma including

8 typical congenital cholesteatoma by analysing patients' history, preoperative

myringoscopic findings, temporal bone computerized tomographies and operative findings.

Results : The diagnostic evidences which congenital cholesteatomas can cause

acquired cholesteatomas are. (1) shorter duration of otorrhea than that of hearing

impairment ; (2) relatively smaller perforation of the ear drum especially in the pars

tensa area ; (3) relatively good pneumatization of the temporal bone ; (4) cholesteatoma

matrices involved in mesotympanum ; and (5) much more damage of ossicular

structures in the mesotympanum.

Conclusion : This review supports that some middle ear cholesteatoma may have the

possibility of congenital origin.
Congenital cholesteatomaAcquired cholesteatomaCholesteatoma pathogenesis
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Journal Papers > School of Medicine / Graduate School of Medicine > Otolaryngology
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