Komatsu Kenichi, Toda Hiroki, Matsumoto Sadayuki
Department of Neurology, Kitano Hospital, The Tazuke Kofukai Medical Research Institute, Japan.
Department of Neurosurgery, Kitano Hospital, The Tazuke Kofukai Medical Research Institute, Japan.
Intern Med. 2018 Nov 15;57(22):3317-3320. doi: 10.2169/internalmedicine.0114-17. Epub 2018 Jul 6.
Plexiform schwannoma is a rare variant of schwannomas and usually presents with chronic symptoms. We herein report a case of cervical nerve plexiform schwannoma that presented with unusually sudden severe left radiculopathy of the eighth cervical nerve after physical exercise. Coronal short-tau inversion recovery (STIR) magnetic resonance imaging (MRI) revealed a multinodular tumor along the eighth cervical nerve. The tumor was partially resected. A pathological analysis revealed that the tumor was a schwannoma, and we diagnosed the case as a plexiform schwannoma. The unusual sudden-onset presentation in this case was considered to be caused by the unusual localization of the tumor involving the nerve root and mechanical stress due to physical exercise.
丛状神经鞘瘤是神经鞘瘤的一种罕见变体，通常表现为慢性症状。我们在此报告一例颈丛状神经鞘瘤病例，该病例在体育锻炼后出现了异常突然的严重颈8神经根病。冠状位短tau反转恢复（STIR）磁共振成像（MRI）显示沿颈8神经有一个多结节肿瘤。肿瘤部分切除。病理分析显示该肿瘤为神经鞘瘤，我们将该病例诊断为丛状神经鞘瘤。该病例异常的突然发病被认为是由于肿瘤累及神经根的异常定位以及体育锻炼引起的机械应力所致。
