摘要
目的:探讨脊髓海绵状血管瘤的MRI表现特征及其病理基础。方法:对比分析13例脊髓海绵状血管瘤患者术前的MRI表现及其术后病理标本。结果:13例脊髓海绵状血管瘤中,11例位于胸段,2例位于下颈段脊髓内,均为单发,病灶处脊髓增粗9例,萎缩2例,正常2例。病灶呈爆米花状或桑椹状,瘤巢较小,一般不超过脊髓横径。T1WI、T2WI均为混杂信号,且T2WI上病灶周围呈低信号环10例,占76.92%;T1WI等信号、T2WI低信号2例,T1WI、T2WI均为高信号1例;增强扫描后,7例病灶中心有中等强化。MRI信号改变与瘤巢反复出血不同时期出血成分沉积及血栓形成、胶质增生密切相关。结论:MRI能反映脊髓海绵状血管瘤的病理变化,对术前确诊具有重要价值。
Objective：To evaluate the correlation between MRI manifestations and pathologic finding of SCCH. Methods：The MRI features and the pathologic finding of 13 patients with SCCH were compared. Results： The lesions located in thorax segment and low cervical segment intramedullary of the spinal cord was 11 and 2 cases respectively. The entire lesion was solitary and less than the diameter of the spinal cord, just like popcorn or mulberry. The shape of the spinal cord was thicker in 9 cases. The MRI findings are characteristic with heterogeneous signal intensity abnormalities on T1-weighted images （T1WI） and T2-weighted images （T2WI）, with a hypo - intense tim on T2WI in 10 cases, iso-lntensity relative to the spinal cord on T1WI, hypo-intensity on T2WI in 2 cases, hyper-intensity both in T1WI and T2WI in 1 cases. There was central homogeneous enhancement in 7 cases after intravenously administration of Gd-DTPA. The MR/ appearances were correlation with pathologic changes of hemangioma in different period such as bleeding, deposit of hemosidefin and colloid hyperplasia. Conclusion： MRI can present the pathologic changes of cavernous hemangioma in different period, so it is the most specific and sensitive method in diagnosis of SCCH.
出处
《医学影像学杂志》
2005年第12期1024-1026,共3页
Journal of Medical Imaging
关键词
脊髓
海绵状血管瘤
磁共振成像
病理
Spinal cord
Cavernous bemangioma
Magnetie resonance imaging
Pathology
