Yamane Hideo, Takayama Masahiro, Sunami Kishiko, Tochino Rie, Morinaka Mikihito
Department of Otolaryngology and Head & Neck Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan.
Acta Otolaryngol. 2007 Feb;127(2):221-4. doi: 10.1080/00016480600794511.
Congenital aural stenosis (CAS) is one type of congenital aural atresia (CAA) and is assumed to be a relatively mild type. Although CAS may be associated with cholesteatoma in the external ear canal, little attention has been paid to this association. We present two cases of CAS with middle ear infection due to destructive cholesteatoma. Both had been followed for microtia by a plastic surgeon. These patients had already exhibited cholesteatoma on CT examination, although it had been missed before the emergence of ear symptoms, otorrhea, and otalgia. We present our cases with successive changes in CT findings over time and discuss the problems of CAS with cholesteatoma.
先天性耳道狭窄（CAS）是先天性耳道闭锁（CAA）的一种类型，被认为是相对较轻的一种。尽管CAS可能与外耳道胆脂瘤有关，但这种关联很少受到关注。我们报告两例因破坏性胆脂瘤导致中耳感染的CAS病例。两位患者均由整形外科医生跟踪观察小耳畸形情况。这些患者在CT检查中已经显示出胆脂瘤，尽管在耳部症状、耳漏和耳痛出现之前就被漏诊了。我们展示了随着时间推移CT表现的连续变化情况，并讨论了CAS合并胆脂瘤的相关问题。
