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目的 :提高临床对外耳道胆脂瘤 (EACC)侵蚀乳突的认识。方法 :回顾性分析 3例EACC侵蚀乳突患者的临床资料。结果 :3例外耳道后壁破坏 ,并有外耳道后壁 乳突腔瘘形成 ;2例面神经骨管破坏 ,面神经及迷路完整 ;经手术治疗 ,随访 6个月～ 9年 ,无复发迹象。结论 :临床上易将外耳道栓塞性角化病 (KO)误诊为EACC ;EACC侵蚀乳突者临床并不多见 ;治疗原则是彻底清除胆脂瘤和死骨 ,并根据病变程度决定手术方式。
OBJECTIVE: To improve the clinical understanding of external ear canal cholesteatoma (EACC) erosion of papillae. Methods: The clinical data of 3 patients with EACC erosive papillae were retrospectively analyzed. Results: The posterior wall of the external auditory meatus was destroyed in 3 cases, and the mastoid fistula of the posterior wall of the external auditory canal was formed. In 2 cases, the facial nerve was destroyed and the facial nerve and labyrinth were completely lost. There was no recurrence after 6 months to 9 years of follow-up. Conclusions: It is easy to clinically misdiagnose external auditory canal keratosis (KO) as EACC. EACC is not common in patients with erosion of papilloma. The treatment principle is to completely remove the cholesteatoma and sequestrum, and decide the surgical method according to the degree of lesion.