A 55 year-old woman came to our clinic with the chief complaints of tinnitus and hearing impairment in her right ear for one year.No history of head injury or mumps was reported.

• 本科曾经验一55岁女性病患，因右耳耳鸣及听力障碍求诊，结果在核磁共振造影术下发现，右侧迷路内及内听道同时存在两个状似完全分开之肿廇。