听神经肿瘤切除术应注意保存听力及面神经功能，随MRI强化扫描技术的发展，小听神经瘤的诊断率及术后保留听力的可能性都在增加，但罕见术后患者能获听力改进的报道，该作者认为即使是很小的听神经瘤也有引起突发性耳聋的可能，因此，将突发性聋做为听神经瘤的初始症状对于小听 Auditory nerve tumor resection should pay attention to the preservation of hearing and facial nerve function, with the development of MRI enhanced scanning technology, the diagnostic rate of small acoustic neuromas and the possibility of retaining hearing after surgery are increasing, but rare postoperative patients can receive hearing improvement reports. The author believes that even a very small acoustic neuroma has the possibility of causing sudden deafness. Therefore, sudden hearing loss is the initial symptom of acoustic neuroma for small hearing.