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目的 探讨中枢神经系统血管外皮细胞瘤(hemangiopericytoma,HPC)的CT、MRI影像学特征。方法 回顾性分析经手术、病理证实的9例中枢神经系统HPC的CT、MRI影像学特征,结合文献报道总结本病的诊断与鉴别诊断要点。结果 9例中颅内7例,椎管内2例。CT平扫4例呈均匀略高密度, 3例呈略高、低混杂密度;MRI检查4例呈等T1、等T2 信号, 3例呈等长T1、等长T混杂信号。CT、MRI增强后所有病灶均呈明显强化。结论 CT、MRI可对中枢神经系统HPC做出可靠诊断。
Objective To investigate the CT and MRI features of central nervous system hemangiopericytoma (HPC). Methods The CT and MRI features of 9 cases of central nervous system (HPC) confirmed by operation and pathology were retrospectively analyzed. The diagnostic and differential diagnosis of this disease were summarized in the literature. Results 9 cases in the intracranial 7 cases, 2 cases of spinal canal. CT scan showed a slightly higher density in 4 cases and slightly higher and lower miscellaneous density in 3 cases. There were 4 T1 and T2 T2 signals in MRI and 3 T1 and T1 equal T signals in MRI. CT, MRI enhanced all lesions were significantly enhanced. Conclusion CT, MRI can make reliable diagnosis of central nervous system HPC.