Asaoka Katsuyuki, Barrs David M, Sampson John H, McElveen John T, Tucci Debara L, Fukushima Takanori
Carolina Neuroscience Institute for Skull Base Surgery, 4030 Wake Forest Road, Suite 115, Raleigh, NC 27609, USA.
AJNR Am J Neuroradiol. 2002 Oct;23(9):1493-6.
Three cases of intracanalicular meningioma mimicking vestibular schwannoma are presented. In each case, a contrast-enhancing mass filling the internal auditory canal was identified on MR images and was originally diagnosed as a vestibular schwannoma. Although it is difficult to differentiate definitively between these lesions preoperatively, imaging findings inconsistent with a diagnosis of vestibular schwannoma can be identified. Preoperative identification of intracanalicular meningiomas permits alterations in surgical planning that allow for the more complete resection of these rare tumors.
本文报告了3例酷似前庭神经鞘瘤的管内型脑膜瘤。在每例病例中，磁共振成像（MR）上均发现一个强化肿块充满内耳道，最初被诊断为前庭神经鞘瘤。尽管术前很难明确区分这些病变，但可以识别出与前庭神经鞘瘤诊断不符的影像学表现。术前识别管内型脑膜瘤有助于改变手术方案，从而更完整地切除这些罕见肿瘤。
