颅内血管周细胞瘤的MRI误诊分析  

MRI misdiagnosis of intracranial hemangiopericytoma

作　　者：赵庆雪[1] 郝天鹏[1] 郑丽丽[1] 王巍[1] 戴春来[1] 

机构地区：[1]吉林大学第一医院二部放射科,吉林长春130031

出　　处：《医学影像学杂志》2014年第8期1282-1284,共3页Journal of Medical Imaging

摘　　要：目的分析颅内血管周细胞瘤的MRI表现特点及提高其诊断认识。方法回顾性分析6例经术后病理证实的颅内血管周细胞瘤MRI表现特点,所有病例均行磁共振平扫及增强扫描。结果 6例肿瘤均位于颅内脑外,多数呈分叶状,T1WI为等及稍低信号,T2WI及FLAIR为稍高及高信号,边界清楚,部分肿瘤内可见血管流空影,增强扫描强化明显。结论颅内血管周细胞瘤误诊率较高,经分析其MRI表现具有一定特征性,应注意鉴别以防误诊。Objective To improve diagnostic accuracy of intracranial hemangiopericytoma by MRI features. Methods We analyzed 6 cases of intracranial hemangiopericytoma verified by pathology respectively. All of them underwent plain and enhanced MRI scans. Results All the tumors were located outside the brain inside the skull. Many of them showed lobulared borders. The masses were shown hypo-isointensity on T1 WI, slight hyperintensity and hyperintensity on T2WI and FLAIR with clear borders. In some cases, flow empty vessels can be seen. All masses were significantly enhanced on contrast-enhanced T1WI. Conclusion Misdiagnosis of intracranial hemangiopericytoma were happened frequently. The tumors have specific features on MRI and attention should be payed to avoid misdiagnosis.

关 键 词：颅内血管周细胞瘤 磁共振成像 

分 类 号：R739.4[医药卫生—肿瘤] R445.2[医药卫生—临床医学]