1. atticotomy transmeatal
   经耳道[鼓室上]隐窝切开术
2. Conclusions: In treating attic cholesteatoma, atticotomy for pathology removal combined with the mastoid isolation technique for attic reconstruct-tion is a promising method.
   结论：对上鼓室胆脂瘤，施予鼓室顶部切开术，然后完整清除胆脂瘤合并乳突孤立术，是值得推荐的手术方法。

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