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KMID : 0361020150580110802
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Korean Journal of Otolaryngology - Head and Neck Surgery
2015 Volume.58 No. 11 p.802 ~ p.805
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A Case of Two Isolated Congenital Cholesteatomas Presented in Middle Ear Cavity
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김태환:Kim Tae-Hwan
조혁기:Cho Hyuk-Ki/박순형:Park Soon-Hyung/남성일:Nam Sung-Il
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Abstract
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Middle ear cholesteatoma is considered to be congenital in origin when there is an intact tympanic membrane with no prior history of otorrhea, tympanic perforation or otologic procedure. However, congenital cholesteatoma is a relatively rare disease entity for which a variety of theories regarding its pathogenesis have been suggested as follows: epidermoid formation, migration of squamous epithelium, implantation, metaplasia, and acquired inclusion theory. However, the pathogenesis of congenital cholesteatoma remains unclear. There are two pathologic types of congenital cholesteatoma, "closed" and "open". We present a rare case of congenital cholesteatoma arising from middle ear cavity in a condition of two completely isolated closed congenital cholesteatomas, which were successfully removed via transcanal approach. Also we review the literature and discuss the theories on the development of two separate congenital cholesteatomas.
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KEYWORD
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Congenital cholesteatoma, Middle ear, Pathogenesis
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