海绵窦海绵状血管瘤及其影像学特点  

Characteristic MR Imaging Findings of Cavernous Hemangiomas in the Cavernous Sinus

作　　者：江桂华[1] 田军章[1] 陈喜兰[2] 瞿文军[3] 钟碧玲[4] 郑丽吟[1] 

机构地区：[1]广东省第二人民医院影像科,广州510317 [2]武汉大学人民医院影像科,430060 [3]广东省第二人民医院脑外科,广州510317 [4]广东省第二人民医院病理科,广州510317

出　　处：《国外医学（脑血管疾病分册）》2005年第12期907-910,共4页Foreign Medical Sciences Cerebrovascular Diseases

摘　　要：目的阐述海绵窦海绵状血管瘤的MRI表现。方法回顾性分析5例经手术及病理学证实并行MRI检查的海绵窦海绵状血管瘤病例。结果5例海绵窦海绵状血管瘤呈外大内小哑铃状改变,在T1加权成像上信号较低,T2加权成像上呈明显高信号,甚至高过脑脊液,增强后病变明显均匀强化。病变侧颈内动脉向前向下推移,并形成假包绕征象。结论如果中年女性海绵窦内肿瘤表现为MRIT2加权成像信号等于或高于脑脊液,颈内动脉向前向下移位,应首先考虑海绵窦海绵状血管瘤。Objective： To expiain the characteristic magnetic resonance imaging （MRI） findings of cavernous hemangiomas in the cavernous sinus. Methods： Five patients with cavernous hemangiomas in the cavernous sinus were confirmed by surgery, pathology and MRI in the retrospective analysis. Results： The shape of the cavernous hemangiomas in the 5 patients looked like dumbbell, Their T1-weighted signals were lower, and T2-weighted images revealed high signal intensity, even higher than eerebrospinal fluid. After contrast, the lesions were evenly enhanced. The affected side of internal carotid artery was pushed forward and downward, and formed pseudo-wrap sign. Conclusion： If the cavernous hemangiomas in the cavernous sinus reveal that T2- weighted image signals in middle-aged women are equal to or higher than eerebrospinal fluid with the displacement of internal carotid artery forward and downward, the cavernous hemangiomas should be considered first.

关 键 词：海绵状血管瘤 海绵窦 磁共振成像 

分 类 号：R743[医药卫生—神经病学与精神病学]