后颅窝实性血管母细胞瘤的MRI诊断及其误诊分析  

Posterior Fossa Solid Hemangioblastomas:MRI Diagnosis and Analyses of the Misdiagnoses

作　　者：王兰菁 朱红春 王晶明 谢丽芬 WANG Lan-jing;ZHU Hong-chun;WANG Jing-ming(Department of Radiology,the People's Hosptial of Zhuhai,Zhuhai 519000,Guangdong Province,China)

机构地区：[1]广东省珠海市人民医院放射科,广东珠海519000

出　　处：《中国CT和MRI杂志》2018年第1期22-24,29,共4页Chinese Journal of CT and MRI

摘　　要：目的探讨后颅窝实性血管母细胞瘤的MRI特征,提高其诊断水平。方法回顾性分析15例经手术病理证实的后颅窝实性血管母细胞瘤的MRI资料,总结其特征。结果 15例均发生于后颅窝。11例为全瘤实性肿块,4例为囊实性肿块,实性为主。MRI上肿瘤实性部分呈长T1长T2信号,15例均可见瘤体或瘤周流空血管影,肿瘤周围轻、中度水肿。增强扫描11例实性肿块全瘤明显强化,4例囊实性肿块为实性部分明显强化,囊性部分不强化。结论后颅窝实性血管母细胞瘤的MRI表现具有一定的特征,综合分析能提高其诊断准确性。Objective To study the MRI features of posterior fossasolid hemangioblastomas,in order to improve the diagnosis accurary.Methods The clinical data and MRI imaging of 15 cases with posterior fossa solid hemangiolbastomas proved were retrospectively reviewed,and summarize its characteristics.Results All of the 15cases occurred in the posterior fossa.11 cases were solid tumors,and 4 cases were cystic-solid tumors.MRI on the solid part showed long T1 and long T2 signal,15 cases showed the empty vessels around or in the mass with mild to moderate edema around.Enhanced scan in 11 cases of solid tumors was significantly enhanced,4 cases of cystic-solid mass was obvious enhancement the solid part without cystic.Conclusion Certain MRI characteristics of posterior fossa solid hemangioblastomas were revealed,comprehensive analysis can improve its diagnosis accuracy.

关 键 词：后颅窝 实性血管母细胞瘤 磁共振成像 

分 类 号：R651.1[医药卫生—外科学]