侧脑室脉络丛黄色肉芽肿的MRI表现  

Converntional MRI manifestations of choroid plexus xanthogranuloma

作　　者：王志辉[1] 张振勇[1] WANG Zhihui;ZHANG Zhenyong(Department of Imaging,The First Affiliated Hospital,Luohe Medical College,Luohe 462000,P.R.China)

机构地区：[1]漯河医学高等专科学校第一附属医院漯河市中心医院影像科

出　　处：《医学影像学杂志》2019年第10期1645-1647,共3页Journal of Medical Imaging

摘　　要：目的探讨脉络丛黄色肉芽肿的MRI表现。方法回顾性分析23例诊断为脉络丛黄色肉芽肿患者的MRI形态及信号表现特征。结果23例脉络丛黄色肉芽肿均位于侧脑室三角区,双侧发病。MRI表现为病灶边界清晰,T1WI均呈低信号,T2WI均呈高信号,DWI均呈高信号,ADC图呈低信号,增强检查病灶边缘可见轻度或中度强化,中心均无强化。结论脉络丛黄色肉芽肿主要见于中老年人,常位于侧脑室三角区,多为双侧发病。DWI病灶多呈高信号,ADC图呈低信号,DWI对病变的诊断及鉴别诊断有很大价值。Objective To investigate the MRI manifestations of choroid plexus xanthogranuloma.Methods The MRI morphology and signal characteristics of 23 cases diagnosed with choroid plexus xanthogranuloma were retrospectively analyzed.Results 23 patients with choroid plexus xanthogranuloma were located in lateral ventricle triangle,all patients had lesions in bilateral ventricles.The MRI features of lesions were well-defined,hypointensity on T 1WI,hyperintensity on T 2WI,hyperintensity on DWI and hypointensity on ADC,mild marginal enhancement after contrast administration,no enhancement could be found in central area of lesion.Conclusion Choroid plexus xanthogranuloma was mainly found in middle-aged and elderly people,mainly located in lateral ventricle triangle,bilateral lesions were most frequently seen.Hyperintensity was shown on DWI,hypointensity was shom on ADC,DWI provided a helpful information in the diagnosis and differential diagnosis of the disease.

关 键 词：侧脑室 脉络丛 黄色肉芽肿 磁共振成像 

分 类 号：R739.41[医药卫生—肿瘤] R445.1[医药卫生—临床医学]