脑内非特异性炎性肉芽肿临床及MR表现  

The clinical and MR features of intracranial nonspecific inflammatory granuloma

作　　者：鱼潇 冒平[1] 李瑞春[1] 鱼博浪[2] 孙亲利[2] YU Xiao;MAO Ping;LI Ruichun;YU Bolang;SUN Qinli(Department of Neurosurgery,First Affiliated Hospital of Xi'an Jiaotong University,Xi'an 710061, China;Department of Medical Imaging,First Affiliated Hospital of Xi'an Jiaotong University,Xi'an 710061, China)

机构地区：[1]西安交通大学第一附属医院神经外科,陕西西安710061 [2]西安交通大学第一附属医院医学影像科,陕西西安710061

出　　处：《实用放射学杂志》2019年第10期1568-1570,共3页Journal of Practical Radiology

摘　　要：目的分析脑内非特异性炎性肉芽肿的临床和影像学特点,提高术前诊断的准确性。方法对经手术病理证实的9例脑内非特异性炎性肉芽肿的临床和影像学资料进行回顾性总结和分析。结果9例病变均位于幕上大脑半球,病变较大,周围水肿明显。增强扫描病灶强化显著,形态很不规则,3例斑片状强化,4例斑片状并多发小结节强化,2例呈多发小结节样强化,强化病灶内有无强化区。4例病灶脑表面脑膜强化。病灶强化部分平扫T1WI多接近灰质信号,T2WI类似脑白质低信号。MRS检查,2例胆碱(Cho)波明显升高,Cho/肌酸(Cr)>4,5例Cho/Cr<1.3。结论脑内非特异性炎性肉芽肿MR增强扫描有特点,呈多发小结节或斑片状强化,其间存在无强化区,部分病例有脑膜强化。Objective To analyze the clinical and MR features of intracranial nonspecific inflammatory granuloma and improve the accuracy of preoperative diagnosis.Methods The clinical and MR features of 9 intracranial nonspecific inflammatory granuloma cases proved by histopathology were analyzed ret respectively. Results Nine lesions were all located in the supratentorial cerebral hemisphere with large lesion range and obvious peripheral edema.On enhancement MR imaging,the lesions were obviously and irregularly enhanced.There were simple patchy enhancement in 3 cases,patchy enhancement with multiple micronodular enhancement in 4 cases,and multiple micronodular enhancement in 2 cases.None enhancement areas were noticed in all enhancement lesions.There were superficial meningeal enhancements in 4 cases,On MR plain scanning, the MR enhancement area of lesions showed similar signal to the grey matter on T1WI and low signal similarly to the white matter on T2W1.0n MRS scan, the significant high signal of Cho was detected in 2 eases and their Chn/O mi in was over 4.The Cho/Cr ratio was lower than 1.3 in 5 eases.Conclusion There are some specific MR enhancement features in the intracranial nonspecific inflammatory granuloma including multiple small nodules or patchy enhancement,in which there were no enhancement areas,and some cases have meningeal enhancement.

关 键 词：脑 肉芽肿 磁共振成像 磁共振波谱 

分 类 号：R742[医药卫生—神经病学与精神病学] R445.2[医药卫生—临床医学]