1. In most cases, enlarged aditus, destruction of lateral attic wall, erosion of ossicular chain, exposition of horizontal segment of facial nerve and tegmen of attic were found. 12例出现鼓窦扩大、上鼓室外侧壁破坏、听骨链侵蚀、鼓室天盖及面神经水平段暴露等骨质破坏。
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。
3. In most cases, enlarged aditus, destruction of lateral attic wall, erosion of ossicular chain, exposition of horizontal segment of facial nerve and tegmen of attic were found. 12例出现鼓窦扩大、上鼓室外侧壁破坏、听骨链侵蚀、鼓室天盖及面神经水平段暴露等骨质破坏。
4. Quietly in their own ask myself who tears like rain, Which wet attic. 自己悄然的问自己，谁的眼泪如雨，打湿了哪家的阁楼。
5. Objective To evaluate sanitary effects on attic type composting latrine. 目的评价阁楼式堆肥厕所无害化效果。
