袁梦媛,王晓晨,王思慧,赵雪宁,陈灵旭,孙胜军.血管中心型胶质瘤MRI表现[J].中国医学影像技术,2024,40(12):1822~1826 |
血管中心型胶质瘤MRI表现 |
MRI manifestations of angiocentric glioma |
投稿时间:2024-05-29 修订日期:2024-10-12 |
DOI:10.13929/j.issn.1003-3289.2024.12.004 |
中文关键词: 神经胶质瘤 磁共振成像 |
英文关键词:glioma magnetic resonance imaging |
基金项目:北京市自然科学基金(7232014)。 |
作者 | 单位 | E-mail | 袁梦媛 | 北京市神经外科研究所放射科, 北京 100070 首都医科大学附属北京天坛医院放射科, 北京 100160 | | 王晓晨 | 北京市神经外科研究所放射科, 北京 100070 首都医科大学附属北京天坛医院放射科, 北京 100160 | | 王思慧 | 北京市神经外科研究所放射科, 北京 100070 首都医科大学附属北京天坛医院放射科, 北京 100160 | | 赵雪宁 | 北京市神经外科研究所放射科, 北京 100070 首都医科大学附属北京天坛医院放射科, 北京 100160 | | 陈灵旭 | 北京市神经外科研究所放射科, 北京 100070 首都医科大学附属北京天坛医院放射科, 北京 100160 | | 孙胜军 | 北京市神经外科研究所放射科, 北京 100070 首都医科大学附属北京天坛医院放射科, 北京 100160 | sunshengjun0212@163.com |
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中文摘要: |
目的 观察血管中心型胶质瘤(AG)MRI表现。方法 回顾性收集21例经病理证实AG患者,观察头颅MRI表现。结果 21例中,18例见单发、3例见多发AG病灶(选择最大病灶进行分析);其中5例(5/21,23.81%)为皮层肿胀型、16例(16/21,76.19%)为肿块型,后者包括10例实性成分为主型及6例囊性成分为主型。21个病灶中,20个(20/21,95.24%)位于幕上,包括额叶8个、颞叶6个、顶叶2个、累及多脑叶3个及侧脑室内1个,1个(1/21,4.76%)脑干病灶位于幕下; T1WI中病灶均呈稍低信号,10个(10/21,47.62%)边缘见高信号;T2WI均呈稍高信号,其中9个(9/21,42.86%)见病灶向侧脑室延伸("茎样征")、11个(11/21,52.38%)见裂隙样高信号;弥散加权成像示20个(20/21,95.24%)无明显弥散受限、1个(1/21,4.76%)弥散受限。增强T1WI显示14个(14/21,66.67%)病灶无强化、5个(5/21,23.81%)轻度强化,2个病灶(2/21,9.52%)明显强化。结论 AG的MRI表现具有一定特征性。 |
英文摘要: |
Objective To observe MRI manifestations of angiocentric glioma (AG). Methods Twenty-one AG patients confirmed by pathology were retrospectively collected, and MRI manifestations were observed. Results Single AG lesion was detected in 18 cases, while multiple AG lesions were found in 3 cases (the largest lesions were selected for analysis). There were 5 cases of cortical swelling type and 16 cases of mass type (including solid component dominant type and cystic component dominant type) AG. Among 21 AG lesions, there were 20 supratentorial area lesions (20/21, 95.24%), including 8 in frontal lobe, 6 in temporal lobe, 2 in parietal lobe, 3 involved multicerebral lobes and 1 in lateral ventricle, whereas only 1 brainstem lesion was found (1/21, 4.76%). On MR T1WI, all lesions showed slight hypo-intensity, and rim-like hyper-intensity was found in 10 lesions (10/21, 47.62%). On T2WI, all lesions showed hyper-intensity, 9 lesions (9/21, 42.86%) extended to lateral ventricle ("stem-like sign"), while 11 lesions (11/21, 52.38%) present fissure-like hyper-intensity. Diffusion weighted imaging showed that 20 lesions (20/21, 95.24%) had no obvious limited diffusion which was observed in 1 lesion (1/21, 4.76%). On enhanced T1WI, 14 (14/21, 66.67%) lesions showed no enhancement, 5 (5/21, 23.81%) showed slightly enhancement and 2 (2/21, 9.52%) showed significant enhancement. Conclusion MRI manifestations of AG had certain characteristics. |
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