Epidermoid Tumor of the Cerebellopontine Angle Presenting with Selective Sudden Hearing Loss. Intraoperative Evidence of a Pearl Tumor Infiltrating and Compressing the Cochlear Nerve
Epidermoid Tumor of the Cerebellopontine Angle Presenting with Selective Sudden Hearing Loss. Intraoperative Evidence of a Pearl Tumor Infiltrating and Compressing the Cochlear Nerve
复制标题
桥小脑角表皮样肿瘤表现为选择性突发性听力损失。
DOI：
10.1055/s-0032-1304507
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
C. Scheller
中科院分区：
文献类型：
--
作者：
Alex Alfieri;S. Simmermacher;J. Prell;Christian Strauss;C. Scheller
摘要桥小脑角上皮样肿瘤伴有多种症状，通常归因于累及脑神经的压迫和移位。作者报告一例位于左侧桥小脑角的大型表皮样瘤，伴有突发性听力损失及耳鸣。术中发现两颗肿瘤珍珠向耳蜗神经内移行是临床征象的来源。切除肿瘤后，病人的病情明显好转。此病例说明了与桥小脑角过大相关的选择性听力损失的机制。
Abstract Epidermoid tumors of the cerebellopontine angle are associated with a variety of symptoms, usually attributed to compression and displacement of involved cranial nerves. The authors present a case of a large epidermoid tumor in the left cerebellopontine angle with sudden hearing loss and tinnitus. The intraoperative finding of migration of two tumor pearls into the cochlear nerve was the origin of the clinical sign. The patient improved remarkably after removal of the tumor. This case demonstrates the mechanism for selective hearing loss associated with the large cerebellopontine angle.