颅内血管外皮细胞瘤与脑膜瘤的MRI 特征比较  

The comparison study of MRI characteristics of intracranial hemangiopericytomas and meningiomas

作　　者：章婷婷[1] 刘斌[1] 钱银锋[1] 黄国权[2] 余永强[1] 

机构地区：[1]安徽医科大学第一附属医院放射科,合肥230022 [2]安徽省芜湖市第二人民医院放射科

出　　处：《中华解剖与临床杂志》2015年第5期415-417,共3页Chinese Journal of Anatomy and Clinics

摘　　要：目的：探讨颅内血管外皮细胞瘤（HPC）与脑膜瘤的 MRI 特征,提高其临床诊断准确率。方法回顾性分析经手术病理证实的16例颅内 HPC 和95例脑膜瘤患者的 MRI 资料,MRI 征象分析包括肿瘤边缘及形态、肿瘤内血管流空信号、肿瘤内囊变坏死、有无硬膜尾征、肿瘤增强的程度和强化方式。结果颅内 HPC 最大径为（5.40±1.72）cm,脑膜瘤最大径（4.43±1.35）cm,差异有统计学意义（t =2.551,P 〈0.05）。 MRI 在显示颅内 HPC 和脑膜瘤肿瘤边缘、肿瘤内血管流空信号、肿瘤内囊变坏死、强化方式、硬膜尾征等特征上的差异均有统计学意义（χ^2=16.883、24.680、16.580、11.296、11.530,P 值均〈0.05）；两者在增强程度上差异无统计学意义（χ^2=0.178, P 〉0.05）。结论MRI 对肿瘤边缘及形态、肿瘤内血管流空信号、肿瘤内囊变坏死、强化方式、硬膜尾征等具有特征表现,对颅内 HPC 和脑膜瘤的鉴别诊断具有重要价值。Objective To analyze MRI features of intracranial hemangiopericytomas（ HPC） and meningioma so as to improve their diagnostic accuracy. Methods MRI findings in 16 cases with HPC and 95 cases with meningioma confirmed by surgical and pathology were retrospectively analyzed. MRI signs included tumor maximum diameter, margin, signal voids of vessel in tumor, cystic degeneration or necrosis in tumor, ＆quot; dural tail sign＆quot; , enhancement pattern and degree. Results The maximum diameters of HPC and meningiomas were （5. 40 ± 1. 72） cm and （4. 43 ± 1. 35） cm, respectively, and the difference was statistically significant （ t = 2. 551, P 〈 0. 05）. There were statistically significant differences in tumor margin, signal voids of vessel in tumor, cystic degeneration or necrosis in tumor, enhancement pattern and degree, and ＆quot; dural tail sign＆quot; （χ^2 = 16. 883, 24. 680, 16. 580, 11. 296, 11. 530, P 〈 0. 05）, while no statistically significant difference in the enhancement degree. Conclusions Imaging findings of HPC had larger maximum diameter, more cross-leaf growth tendency, more signal voids of vessel, more necrosis, more cystic changes giving rise to heterogeneous signals, rarer frequency of the ＆quot; dural tail sign＆quot; than meningiomas. These features may help differentiate them.

关 键 词：血管外皮细胞瘤 脑膜瘤 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]