| 原发性颅内畸胎瘤的MRI诊断 |
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| 引用本文： | 邱士军,张雪林,昌仁民.原发性颅内畸胎瘤的MRI诊断[J].实用放射学杂志,2002,18(8):653-654. |
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| 作者姓名： | 邱士军 张雪林 昌仁民 |
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| 作者单位： | 广州第一军医大学南方医院影像中心,广东,广州,510515 |
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| 摘 要： | 目的 探讨MRI对畸胎瘤的诊断价值。方法 9例经手术和病理证实的畸胎瘤患者 ,对其MR表现进行分析。结果 本组术前MRI诊断定位正确率为 10 0 % ,定性正确率 (8/9)为 88.8%。其MRI特征性表现为 :(1)肿瘤形态以分叶状为主 ,边界清楚。(2 )肿瘤信号多不均匀 ,表现复杂。 (3 )Gd -DTPA增强肿瘤呈不均匀强化。结论 MRI的多轴位成像及Gd -DTPA应用有助于畸胎瘤的诊断与鉴别诊断
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| 关 键 词： | 脑 畸胎瘤 磁共振成像 |
| 文章编号： | 1002-1671(2002)08-0653-02 |
| 修稿时间： | 2002年1月22日 |
MRI Diagnosis of Primary Intracranial Teratoma |
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| QIU Shi-jun,ZHANG Xue-lin,CHANG Ren-min.MRI Diagnosis of Primary Intracranial Teratoma[J].Journal of Practical Radiology,2002,18(8):653-654. |
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| Authors: | QIU Shi-jun ZHANG Xue-lin CHANG Ren-min |
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| Abstract: | Objective To investigate the role of MRI in diagnosis of primary intracranial teratoma.Methods Nine cases of primary intracranial teratoma proved by operation and pathology were examined by MRI before operation.MRI features were analysed retrospectively.Results The localized and qualitative rates were 100% and 88.8% respectively.The characteristic MRI appearances of primary intracranial teratoma were as follows:(1)The tumor was lobular in shape with clear margin;(2)The tumor had heterogeneous signal intensity ;(3)Inhomogeneous Gd-DTPA enhancement in most of the tumors.Conclusion Multiplanar imaging and Gd-DTPA enhancement in MRI are helpful in diagnosis and differential diagnosis of teratoma. |
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| Keywords: | brain teratoma MRI |
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