| 赵天平,程敬亮,张勇.MR诊断中枢神经细胞瘤[J].中国医学影像技术,2009,25(9):1557~1559 |
| MR诊断中枢神经细胞瘤 |
| MR diagnosis of central neurocytoma |
| 投稿时间：2009-03-04 修订日期：2009-05-26 |
| DOI： |
| 中文关键词: 中枢神经系统肿瘤 磁共振成像 诊断显像 |
| 英文关键词:Central nervous system neoplams Magnetic resonance imaging Diagnostic imaging |
| 基金项目: |
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| 中文摘要: |
| 目的 探讨中枢神经细胞瘤的MRI特点及其诊断价值。方法 回顾性分析经手术病理证实的中枢神经细胞瘤17例,男10例,女7例,年龄21~41岁,平均29.6岁。结果 全部肿瘤均位于侧脑室透明隔、邻近Monro孔;MR T1WI呈等、低信号,T2WI呈不均匀高信号。矢状位和冠状位T1WI及增强扫描图像上,9例可见由胼胝体和侧脑室顶呈网状或丝条状垂向下的瘤组织,轴位7例见瘤组织牵拉侵犯单侧或双侧脑室侧壁形成索条状影。所有肿瘤均伴多发囊变,部分瘤体内可见出血及血管流空征象。肿瘤在增强扫描中多呈较明显不均匀强化。结论 中枢神经细胞瘤MRI表现有一定的特异性,有助于诊断。 |
| 英文摘要: |
| Objective To evaluate the characteristic appearance and diagnosis value of central neurocytoma on MRI. Methods MR imaging of 17 patients with central neurocytoma (CNC) confirmed surgically and pathologically were retrospectively reviewed. Results All the lesions located in the lateral ventricle septum pellucidum, adjacent to Monro hole, present as hypointense and equal signal intensity on T1WI and inhomogeneous hyperintense signal on T2WI. Wire mesh or strips of abnormal signal intensity within the corpus callosum and the top of lateral ventricle on sagittal and coronal scan were detected in 9 patients, while cord-like abnormal signal intensity one side or both sides of the lateral ventricle wall were found in 7 patients. All the tumors were associated with multiple cystic degeneration and bleeding and flow void signal intensity were demonstrated in some. Most of the tumors had significant inhomogeneous enhancement on Gd-DTPA enhanced T1WI. Conclusion Central neurocytoma has the characteristic appearances on MRI, being helpful to the diagnosis of it. |
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