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报告11例年龄2～9岁,平均6岁的先天性胆脂瘤病人。除2例外均有听力缺损,1例复发性中耳炎。术时发现4耳中耳渗液,5例胆脂瘤局限于鼓室前上部分,1例为两侧胆脂瘤,2例胆脂瘤位于鼓室后方,1例胆脂瘤扩展至乳突。所有病例鼓膜完整和无耳手术史。有关先天性胆脂瘤起源的许多理论,没有一个能令人信服地被证明。Michaels(1986,1988a、b)在许多胎儿耳的咽鼓管和中耳近鼓环前缘连接部看到细胞残余-表皮样结构和从鼓室
Report 11 cases aged 2 to 9 years, with an average of 6-year-old patients with congenital cholesteatoma. All except 2 cases had hearing loss and 1 case of recurrent otitis media. During operation, 4 ears of middle ear effusion were found. Five cases of cholesteatoma were confined to the anterior superior tympanum. One case was cholesteatoma on both sides. Two cases of cholesteatoma were located behind the tympanic cavity. One case of cholesteatoma extended to mastoid. Tympanic membrane integrity and no history of ear surgery in all cases. None of the many theories about the origins of congenital cholesteatoma have been convincingly proven. Michaels (1986, 1988a, b) saw cell remnant-epidermal-like structures in many fetal ear eustachian tubes and the middle ear near the rim of the bellows,