Bricolo A, De Micheli E, Gambin R, Alessandrini F, Iuzzolino P
Department of Neurological Sciences and Vision, University of Verona, Italy.
J Neurosurg Sci. 1995 Sep;39(3):153-8.
A 51 year-old male, complaining of progressive left-sided hearing loss, tinnitus, and unsteady gait, underwent surgery with a probable diagnosis of intracanalicular acoustic neuroma, based on neurological, neurotologic, Computed Tomography (CT), and Magnetic Resonance Imaging (MRI) findings. During surgery, the Internal Auditory Canal (IAC) was opened and a reddish-colored, soft, vascular lesion was found within the VII and VIII cranial nerve complex. The lesion, which resulted to be a cavernous malformation, was removed without any postoperative deficits. This report stresses the diagnostic difficulty to differentiate preoperatively the more frequent acoustic neuromas from other lesions that may develop within the IAC.
一名51岁男性，因渐进性左侧听力丧失、耳鸣和步态不稳而就诊，基于神经学、耳科学、计算机断层扫描（CT）和磁共振成像（MRI）检查结果，其手术诊断可能为内耳道听神经瘤。手术中，打开内耳道（IAC），在第VII和第VIII脑神经复合体中发现一个红色、柔软的血管性病变。结果发现该病变是一个海绵状畸形，切除后未出现任何术后功能缺损。本报告强调了术前将较常见的听神经瘤与可能发生在IAC内的其他病变区分开来的诊断困难。
