Kuczkowski Jerzy, Dubaniewicz-Wybieralska Mirosława
Katedra i Klinika Otolaryngologii AM w Gdańsku.
Otolaryngol Pol. 2007;61(3):322-4. doi: 10.1016/S0030-6657(07)70435-3.
Petrosal cholesteatomas are rare lesions, which may be primary or acquired in nature. We report a case of primary cholesteatoma in petrous bone occurring in 51-year old woman who presented with a unilateral facial nerve palsy and conductive hearing loss, despite normal tympanic membrane appearance. Early diagnosis was facilitated by computed tomography scanning and magnetic resonance imaging. Complete cholesteatoma removal was accomplished using a transtemporal supralabyrinthine approach, which allowed hearing preservation. Facial nerve function is the main complication of these lesion. We suggest that use of CT scanning and MRI in unilateral conductive hearing loss may allow the earlier detection of the most cases of petrosal cholesteatomas.
岩部胆脂瘤是一种罕见的病变，其性质可能是原发性或后天性的。我们报告一例发生在一名51岁女性岩骨中的原发性胆脂瘤病例，该患者表现为单侧面神经麻痹和传导性听力损失，尽管鼓膜外观正常。计算机断层扫描和磁共振成像有助于早期诊断。采用经颞上迷路入路完成了胆脂瘤的完整切除，从而保留了听力。面神经功能是这些病变的主要并发症。我们建议，对于单侧传导性听力损失患者，使用CT扫描和MRI可能有助于更早地发现大多数岩部胆脂瘤病例。
