摘要
目的:分析颅内血管外皮细胞瘤的CT及MRI影像表现。方法:选取经手术病理证实的颅内血管外皮细胞瘤10例,男6例、女4例,所有病例均进行了CT及MRI检查。结果:回顾分析其CT及MRI影像表现有如下特点,CT:①肿瘤表现为等低混杂密度或等低高混杂密度,增强扫描后,肿瘤通常为明显不均匀强化;②肿瘤临近骨质可有破坏,但无增生硬化;③半数以上肿瘤与硬膜窄基底相连;④肿瘤形态呈分叶状或菜花状。MR:①肿瘤主要表现为等长混杂T1、等长混杂T2信号影,偶可见短T1或短T2信号影,注药后,肿瘤增强明显但不均匀;②外形呈不规则分叶状;③半数以上的肿瘤与硬膜窄基底相连;④肿瘤内常可见血管流空影而见不到钙化影。结论:颅内血管外皮细胞瘤有比较典型的CT及MR影像特点,结合临床表现有助于其术前正确诊断。
Objective:To study the CT and MRI findings of intracranial hemangiopericytoma. Methods:Tne CT and MRI in 10 pathologically proved eases of intracranial hemangioperieytomas were retrospectively reviewed. 6 males, 4 females. Results: The CT and MRI in 10 pathologically proved cases of intraeranial hemangiopericytomas were as follow: CT: ① The tumors appeared mixed iso-and hypedense or mixed iso-and hypo-and hyperdense. After contrast injection, the tumors usually enhanced marked and heterogeneously;② Bone erosion was present, but hyperostosis was not present;③ More than half tumors were narrow-based dural attachment; ④ The tumors showed lobulated in shape. The MRI characteristics were as follows: ① The tumors showed mainly iso-and hypointemity with cortical, gray matter on T1-weighed images and iso-and hyperintensity on T2-weighted images. The hypefintensity on T1-weighted images and hypefintensity on T2-weighted images were unusual observed in tumors. After contrast injection, the tumors usually enhanced markedly and heterogeneously ;②The tumors showed lobulated in shape;③ More than half tumors were narrow-based dural attachment; ④ Many signal voids of vessel in tumors were often observed, but calcification was not observed. Conclusion: The CT and MRI appearances of intraeranial hemangiopeficytomas are characteristic, it is helpful to get a correct diagnosis with clinical features.
出处
《医学影像学杂志》
2006年第7期663-665,共3页
Journal of Medical Imaging