Equilibrium Research
Online ISSN : 1882-577X
Print ISSN : 0385-5716
ISSN-L : 0385-5716
シリーズ教育講座 「原著から今日まで ―代表的疾患の変遷―」
10. 聴神経腫瘍
村上 信五高橋 真理子稲垣 彰
ジャーナル フリー

2019 年 78 巻 3 号 p. 148-156


 Vestibular schwannoma (VS) is a benign tumor that originates from the vestibular nerve, extending to the cerebellopontine angle. It was first described in the latter part of the 1700s. The symptoms of VS include unilateral sensorineural hearing loss, tinnitus, dizziness, etc. In general, the hearing loss develops gradually, although some patients develop deafness of sudden onset. The audiogram in patients with VS who present with deafness of sudden onset shows trough-type hearing loss at mid-frequencies. Audiogram, caloric testing and ABR are useful tools for the diagnosis of VS, however, a definitive diagnosis can only be made by MRI with gadolinium enhancement.

 Currently, there are tree treatment options for VS: “wait and scan,” surgical removal, and radiotherapy. Selection among these treatment options is mainly made based on the tumor size, preoperative hearing level and the patient's age. Herein, we present the key points for early diagnosis and appropriate management of VS.

© 2019 一般社団法人 日本めまい平衡医学会