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在无感染史的完整鼓膜后的上皮囊肿,虽不常见,但常发生在儿童。当鼓膜切开置通气管时,多发现中耳内有鳞状脱屑而非液体。如早期发现、彻底清除可永久痊愈,否则会引起并发症。制作鼓耳道皮瓣除去先天性胆脂瘤的传统方法,常不满意,因囊肿可位于中耳前上象限,和向槌骨下延伸,不可能完全清除而保持听功能。本文倡用成块取出耳道皮肤、槌骨和胆脂瘤的方法。作者十年中施行9例,术后听力满意,治愈率增加,长期随访无变化。
Epithelial cysts after a complete eardrum without infection are uncommon but often occur in children. When the tympanic membrane is placed in the ventilation tube, scaly scaling rather than liquid is found in the middle ear. As early detection, complete removal of permanent recovery, otherwise it will cause complications. Traditional methods of removing the congenital cholesteatoma from the ear canal flap are often unsatisfactory because the cyst can be located in the anterior superior quadrant of the middle ear and extend under the mallet, making it impossible to completely remove and maintain hearing function. This article advocates the method of removal of the ear canal skin, mallet and cholesteatoma. Nine years after the implementation of the author, satisfactory after hearing, the cure rate increased, no change in long-term follow-up.