Therefore, the depth researches of cytokines in the specific role of acquired cholesteatoma are becoming important, which is a key ring in research clearly acquired cholesteatoma pathogenesis.

因此，深入研究细胞因子在继发性中耳胆脂瘤中的具体作用十分重要，是研究清楚继发性中耳胆脂瘤的发病机制中的关键一环。

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Result and Conclusion:It is a acquired primary cholesteatoma.

结果与结论：①该病属后天原发性胆脂瘤；

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Decrease in acouesthesia might be the first diagnosed symptom of acquired primary cholesteatoma;

听力下降是后天性原发性胆脂瘤的首诊症状。

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