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在中耳胆脂瘤的外科手术中，乳突腔填充术有时是能避免开放式鼓室成形本中死腔问题。在闭合式鼓室成形术中，也能减少乳突空气容量，然而这种方法总是引起隐藏在填充术之下残余疾病的危险。临床上由于胆脂瘤成分在最初的手术被完全切除，残余胆脂瘤的发生并不罕见是一个争论的
In middle ear cholesteatoma surgery, mastoid filling sometimes avoids the problem of open chamber tympanoplasty. In closed tympanoplasty, the air volume of the mastoid can also be reduced, however, this method always invites the risk of residual disease hidden under filling. It is not uncommon to argue that the occurrence of residual cholesteatoma is not uncommon in clinic because of the complete resection of cholesteatoma components in the initial surgery