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ORIGINAL ARTICLE
Year : 2014  |  Volume : 10  |  Issue : 4  |  Page : 927-931

MRI diagnosis of intradural extramedullary tumors


Department of Orthopedics, China-Japan Union Hospital, Jilin University, Changchun, China

Correspondence Address:
Jia-Bei Liu
Department of Orthopedics, China-Japan Union Hospital, Jilin University, No. 126 Xiantaida Street, Changchun 130033
China
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0973-1482.137993

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Objective: This study evaluates the magnetic resonance imaging (MRI) manifestation of intradural extramedullary (IDEM) tumors to improve the imaging diagnostic level. Materials and Methods: From January 2005 to December 2012, a retrospective analysis of the MRI examination was performed on 108 patients with IDEM tumors confirmed by surgical pathology postoperatively in our hospital. According to the pathological classification; the gender, age, location, size, foraminal state extension, signal intensity (compared with the spinal cord), and enhancement were recorded and statistically analyzed. Results: A total of 108 cases (111 lesions) were reported; 69 (70 lesions), 31 (31 lesions), three (five lesions), four (four lesions), and one (one lesion) of which were schwannoma, meningioma, neurofibroma, teratoma, and metastatic tumor, respectively. MRI manifestations of different IDEM tumors have certain specificities. Conclusion: MRI is the preferred examination method for to diagnose IDEM tumors and provide a reliable imaging basis for clinical treatment and prognosis judgment.

Abstract in Chinese

髓外硬膜下肿瘤的MRI诊断 摘要 目的:探讨髓外硬膜下肿瘤(IDME)磁共振成像(MRI)表现,提高影像诊断水平。 材料和方法:回顾分析了从2005年1月到2012年12月,我院的术后病理证实为髓外硬膜下肿瘤的108例患者的MRI检查。根据病理分类,性别,年龄,位置,尺寸,孔的状态的扩展,信号强度(与脊髓相比),和增强的记录进行了统计分析。 结果:共108例(111个病灶)的报告;69(70病灶),31(31病灶),3(5病灶),4(4病灶),1(1病灶)分别为神经鞘瘤、脑膜瘤、神经纤维瘤、畸胎瘤和转移性肿瘤。不同肿瘤的MRI表现具有一定的特异性。 结论:MRI是首选的来诊断髓外硬膜下肿瘤的检查方法,为临床治疗和预后的判断提供可靠的影像学依据。 关键词:诊断,髓外硬膜下肿瘤,磁共振成像



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