横断面MRI显示小脑桥脑角肿块压迫小脑，为神经鞘瘤，即听神经瘤(因累及Ⅷ脑神经)。下图为放大图。
This magnetic resonance imaging (MRI) scan in transverse view demonstrates a mass impinging upon the cerebellum from the cerebellopontine angle. This is a schwannoma, also known as an acoustic neuroma because it arises from the eighth nerve.