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自1956年Halberg报道突聋是听神经瘤的初发症状后,对早期诊断内听道的听神经瘤确实很重要。此后文献陆续有所报道、该作者根据日本Ehime大学医院1972～1990年111例经手术证实的听神经瘤患者病例,着重对突聋作为听神经瘤的初发症状和不同大小的肿瘤与突聋发生率的关系进行分析。肿瘤分为小肿瘤:主要位于内听道骨管内,其骨管外部分<1cm;中肿瘤:在内听道外部分为1.1～2.9cm;大肿
Since Halberg reported in 1956 that the sudden hearing loss is the initial symptom of acoustic neuroma, it is indeed important for early diagnosis of acoustic neuromas in the auditory canal. Since then, the literature has been reported one after another. The author focused on the occurrence of tumours as the initial symptoms of acoustic neuroma and the incidence of tumours and tumours of different sizes according to 111 cases of acoustic neuroma patients confirmed surgically from 1972 to 1990 at Ehime University Hospital in Japan. The relationship is analyzed. The tumor is divided into small tumors: it is mainly located in the bone tube of the internal auditory canal, and the external part of the bone tube is <1cm; the tumor is divided into 1.1 to 2.9cm in the external auditory canal;