脑室管膜瘤的CT诊断

CT Diagnosis of Ependymoma

目的 分析室管膜瘤的CT表现 ,提高诊断准确性。方法 回顾分析 15例经手术病理证实的室管膜瘤的CT表现。结果 幕上 12例脑实质内 8例 ,幕下 3例中四脑室 2例。 2 0～ 35岁 6例。室管膜瘤幕上脑实质内多见 ,并多有囊变与瘤周水肿 ,且多为恶性 ,其余部位多为实性肿块。平扫实性部分为等密度 ,易钙化 ,增强强化较明显。结论 室管膜瘤有较为特殊CT表现 ,结合发病部位、年龄 。

Objective To analyse the CT appearance of ependymomas and to improve the accuracy of diagnosis. Methods To review the CT appearance of 15 cases of ependymoma that confirmed by surgery and pathology. Results 12 cases were superior, 8 cases were brain parenchyma among of them; 3 cases were subtentorial, among them the fourth ventricle 2 cases. The age of 6 cases vary from 20 to 35 years. Ependymomas superior to the tentorium in the brain parenchyma were the most common, and in malignant parts there were cystoid changes and edema around the tumor. In the other parts were largely solid neoplasm. On unenhanced CT, the solid parts were indense and caicificable and were easy to dicern on enhanced CT . Conclusion The CT appearances of ependymoma were specific, we can dram an accurate conclusion according where the tumor taking place, the age etc. [