脑室脑膜瘤的影像诊断

目的　探讨脑室脑膜瘤的影像学表现,以提高对脑室脑膜瘤的认识和诊断正确率。方法　经手术病理证实的脑室脑膜瘤 22例,其中男 8例,女 14例,年龄 17~72岁(平均 45岁 )。行MRI检查 21例,其中增强 17例;行CT检查 11例,其中增强 4例;同时行CT和MRI检查 10例,结合手术和病理结果进行分析。结果　脑室脑膜瘤以纤维型多见,主要位于侧脑室三角区,多数表现为实质性肿块,边界清晰,明显强化。可见钙化,出血及囊变少见。结论　脑室脑膜瘤有特殊的影像学表现,CT和MRI在诊断中具有一定的价值,尤其是MRI。

Ventricular Meningioma: Imaging Diagnosis

Objective To study the imaging features of the ventricular meningioma, in order to improve the understanding knowledge. Methods Compared with operative and pathological findings,the CT and MRI features of ventricular meningioma were analyzed in 22 patients (8 males and 14 females,range from 17~72 years old with average age 45 years).21 cases were examined by MRI(17 with enhanced scan),11 cases by CT(4 with enhanced scan).Results The ventricular meningioma were mostly fibrous type. Mostly, the locations were in the trigone of the lateral ventricle with regular shape. On imaging, the most were parenchymatous with markedly enhancement. Calcification may be found, but cystic changes and hemorrhage were very rare.Conclusion The ventricular meningiomas have characteristic imaging features. CT and MRI are valuable in diagnosis, especially MRI.