Hopkins C, Chau H, McGilligan J A
Department of Otolaryngology, Royal Sussex County Hospital, Brighton, UK.
J Laryngol Otol. 2003 Dec;117(12):987-8. doi: 10.1258/002221503322683911.
Facial nerve neuromas occur throughout the course of the facial nerve and its branches, however lesions occurring on the chorda tympani branch are exceptionally rare. We present a case where the diagnosis was made intra-operatively; the patient was pre-operatively thought to have had a cholesteatoma. Total resection is the treatment of choice for these cases. Early diagnosis, aided by high resolution computed tomography (CT) scanning, will facilitate complete excision without damage to the facial nerve itself or the ossicular chain. The slow growing nature of the neuroma is likely to allow compensatory mechanisms to occur without the patient experiencing dysgeusia. As with any rarity the diagnosis can only be made with a high index of suspicion.
面神经神经瘤可发生于面神经及其分支的全程，然而发生于鼓索支的病变极为罕见。我们报告一例术中确诊的病例；该患者术前被认为患有胆脂瘤。对于这些病例，手术全切是首选治疗方法。借助高分辨率计算机断层扫描（CT）进行早期诊断，将有助于在不损伤面神经本身或听骨链的情况下实现完整切除。神经瘤生长缓慢，这可能使代偿机制得以发生，而患者不会出现味觉障碍。与任何罕见病一样，只有高度怀疑才能做出诊断。
