脑膜血管瘤病的影像学表现  

The Imaging Features of Meningioangiomatosis

作　　者：王思慧 王晓晨 赵雪宁 孙胜军[1,2] WANG Sihui;WANG Xiaochen;ZHAO Xuening(Department of Radiology,Beijing Neurosurgical Institute,Beijing 100070,P.R.China)

机构地区：[1]北京市神经外科研究所放射科,100070 [2]首都医科大学附属北京天坛医院放射科,北京100070

出　　处：《临床放射学杂志》2022年第12期2185-2188,共4页Journal of Clinical Radiology

基　　金：国家自然科学基金项目(编号:81971614)。

摘　　要：目的分析脑膜血管瘤病(MA)的影像学表现,以提高对该病的认识。方法选取经手术病理证实为MA的患者17例,回顾性分析其MRI、CT的影像特征。结果17例(100%)病灶均位于大脑半球近皮层处,均无中线结构移位。17例(100%)在T_(1)WI均表现为等/低信号,13例(76.5%)在T_(2)WI表现为等/稍高/高信号,4例(23.5%)在T_(2)WI表现为低信号。仅有1例伴明显周围水肿。13例为实性,3例为囊实性,1例为囊性。CT平扫实性部分7例为等或高密度,1例为低密度,7例(87.5%)存在钙化,5例(62.5%)钙化体积占比≥50%。结论MA多位于大脑半球近皮层处,钙化多见且在整体病灶中占比常≥50%,无占位效应及周围水肿、囊变少见。对于发生在颞叶、额叶近皮层处,以癫痫起病的儿童及青少年,应考虑该病诊断的可能。Objective To analyze the imaging features of meningioangiomatosis in order to learn it in depth.Methods The imaging data of 17 cases of meningioangiomatosis confirmed by pathology were analyzed retrospectively.Results The lesion were all located in the cerebral hemispheres near the cortex without the shifting of middle structures.17 cases demonstrated iso or hypo-intensity on T_(1)WI,in which 13 cases showed iso or slightly hyper,hyper-intensity on T_(2)WI,while the other 4 cases manifested hypointensity,significant peripheral edema existed in only 1 case.13 cases(76.5%)were solid,3 cases(17.6%)were cystic-solid,1 case(5.9%)was completely cystic.On CT scan,7 cases showed iso or hyper density,1 case demonstrated low density.Calcification can be seen in 7 cases(87.5%),and the component of calcification accounted for more than half of the total lesion in 5 cases(62.5%).Conclusion The typical meningioangiomatosis tends to locate in the cerebral hemisphere near the cortex without the shifting of midline structure,accompanying with high rate of calcification,and the proportion of it in whole lesion is usually more than 50%.Meningioangiomatosis should be took into consideration of diagnosis for the children and adolescents whose chief complaint is epilepsy with the lesion in temporal and frontal lobe.

关 键 词：脑膜血管瘤病 磁共振成像 体层摄影术 X线计算机 

分 类 号：R739.45[医药卫生—肿瘤]