硬脊膜内髓外脊髓神经鞘瘤和脑膜瘤的磁共振成像

MRI of intradural-extramedullary spinal neurinomas and meningiomas.

作者信息

Matsumoto S, Hasuo K, Uchino A, Mizushima A, Furukawa T, Matsuura Y, Fukui M, Masuda K

机构信息

Department of Radiology, Faculty of Medicine, Kyushu University, Fukuoka, Japan.

出版信息

Clin Imaging. 1993 Jan-Mar;17(1):46-52. doi: 10.1016/0899-7071(93)90013-d.

DOI:10.1016/0899-7071(93)90013-d

PMID:8439845

Abstract

The magnetic resonance images of 16 patients with intradural-extramedullary spinal tumors, consisting of 11 neurinomas and five meningiomas were reviewed. The neurinomas appeared hypointense compared to the spinal cord on unenhanced T1-weighted images (T1WI) in nine of 11 patients, and hyperintense on T2-weighted images (T2WI) in nine of 11 patients. Neural foraminal extension was present in two cases. All 10 neurinomas were markedly enhanced; six of them exhibited ring-like enhancement on Gadolinium-DTPA (Gd-DTPA)-enhanced T1WI. The meningiomas appeared isointense on unenhanced T1WI in four of five patients and on T2WI in three of four patients. Three meningiomas showed moderate homogeneous contrast enhancement after the intravenous administration of Gd-DTPA. It is concluded that careful scrutiny of magnetic resonance images facilitates the differential diagnosis of spinal neurinomas and meningiomas.

摘要

回顾了16例硬脊膜内髓外脊髓肿瘤患者的磁共振图像，其中包括11例神经鞘瘤和5例脑膜瘤。11例患者中，9例神经鞘瘤在未增强的T1加权像（T1WI）上相对于脊髓呈低信号，11例患者中，9例在T2加权像（T2WI）上呈高信号。2例存在神经孔延伸。所有10例神经鞘瘤均有明显强化；其中6例在钆喷酸葡胺（Gd-DTPA）增强T1WI上呈环形强化。5例患者中，4例脑膜瘤在未增强T1WI上呈等信号，4例患者中，3例在T2WI上呈等信号。3例脑膜瘤在静脉注射Gd-DTPA后显示中度均匀对比增强。结论是仔细审视磁共振图像有助于脊髓神经鞘瘤和脑膜瘤的鉴别诊断。