目的探讨颅内血管外皮细胞瘤 (HPC)的磁共振成像(MRI)影像学特征。 方法 选取2013年1月至2018年1月在我院 治疗的HPC患者23例(HPC组)，同时选取 血管瘤型脑膜瘤患者70例作为对照(脑 膜瘤组)，比较两组MRI影像学特征。结 果 23例HPC中，经病理诊断14例为高分 化HPC，9例为间变性HPC；HPC组肿瘤形 态呈分叶状、肿瘤坏死囊变、瘤体呈窄 基底附着硬膜、T2WI呈等高信号、肿瘤 明显强化比例分别为65.22%、69.57%、 65.22%、73.91%和91.30%，高于脑膜瘤 组(P＜0.05)；间变性HPC肿瘤坏死囊 变比例为100.00%，高于高分化HPC(P ＜0.05)；高分化HPC和间变性HPC在肿 瘤形态、硬膜尾征、肿瘤与附着硬膜关 系、T1WI信号、T2WI信号和肿瘤强化程 度方面差异无统计学意义(P＞0.05)。结 论 颅内HPC的MRI影像表现具有一定特征 性，且不同分化HPC的MRI影像表现有一 定差异。

Objective To investigate the imaging features of magnetic resonance imaging (MRI) of intracranial hemangiopericytoma (HPC). Methods From January 2013 to January 2018, 23 HPC patients (HPC group) were treated in our hospital, and 70 patients with hemangioma meningioma were selected as the control group (meningioma group), two groups of MRI imaging features were compared. Results In 23 cases of HPC, 14 cases were high differentiation HPC, 9 cases were anaplastic HPC. The lobulated tumor morphology, tumor necrosis and cystic degeneration, tumor showed narrow basement attach to the dura, T2WI showed equal high signal, tumor enhancement ratio in HPC group were 65.22%, 69.57%, 65.22%, 73.91% and 91.30%,were higher than that of meningioma group (P<0.05), the ratio of tumor necrosis and cystic degeneration in anaplastic HPC was 100.00%, higher than the high differentiation HPC (P<0.05), the difference in tumor morphology, dural tail sign, the relationship between tumor and attachment dura, T1WI signal, T2WI signal and the degree of tumor enhancement between anaplastic HPC and high differentiation HPC were no statistical significant (P>0.05). Conclusion The MRI image of intracranial HPC has some characteristic features, and there are certain differences in the MRI image of different differentiated HPC.