Department of Otolaryngology, New York Eye & Ear Infirmary, 310 E 14th St, 6th Flr, New York,NY 10003, USA.
Otolaryngol Head Neck Surg. 2010 Feb;142(2):278-80. doi: 10.1016/j.otohns.2009.10.035.
To investigate the spectrum of disease presentation and clinical management of primary external auditory canal cholesteatoma (EACC).
Case series with chart review.
Specialty teaching hospital.
Ten cases of primary EACC were identified in nine patients treated over 14 years (1995-2009). Cases were reviewed with regard to demographics, presentation, physical examination, CT findings, and clinical management.
The most common symptoms were otalgia and hearing loss, followed by otorrhea and tinnitus. Erosion was present in the mastoid air cells in seven patients, middle ear in six, temporomandibular joint in two, otic capsule in two, and fallopian canal in one patient. Eight of nine patients were managed with serial debridement.
EACC is associated with adjacent bony erosion, most often involving the inferior EAC. Despite the potentially destructive nature of these lesions, most cases can be successfully managed with serial debridement.
研究原发性外耳道胆脂瘤（EACC）的疾病表现谱和临床治疗方法。
病例系列和病历回顾。
专业教学医院。
在 14 年期间（1995-2009 年）共治疗了 9 例原发性 EACC 患者，共发现 10 例。对这些病例的人口统计学资料、临床表现、体格检查、CT 发现和临床治疗进行了回顾。
最常见的症状是耳痛和听力损失，其次是耳漏和耳鸣。7 例患者的乳突气房有侵蚀，6 例患者的中耳有侵蚀，2 例患者的颞下颌关节有侵蚀，2 例患者的耳蜗有侵蚀，1 例患者的咽鼓管有侵蚀。9 例患者中有 8 例采用了连续清创术进行治疗。
EACC 与相邻骨侵蚀有关，最常见的是累及下外耳道。尽管这些病变具有潜在的破坏性，但大多数病例可以通过连续清创术成功治疗。
