周围软组织血管瘤和血管畸形MRI鉴别诊断  

MRI Differential Diagnosis of Peripheral Hemangiomas and Vascular Malformations

作　　者：张小占[1] 史大鹏[2] 董长宪[2] 马玉春[2] 孔令非[2] 

机构地区：[1]焦作市第二人民医院MR室,河南焦作454000 [2]河南省人民医院

出　　处：《实用放射学杂志》2006年第9期1115-1117,1159,共4页Journal of Practical Radiology

基　　金：河南省科技攻关重点项目(项目编号:0323034200)。

摘　　要：目的探讨血管瘤和血管畸形MRI的鉴别诊断。方法回顾性分析61例手术证实的血管瘤和血管畸形MRI表现并与病理进行对照。结果29例血管瘤中,在T1WI上,20例为等信号(等于肌肉信号),9例为高等混杂信号;在T2WI上,24例呈较高信号(接近脂肪信号),5例呈高信号(高于脂肪信号),另见25例条状低信号分隔,其中4例增强呈分块状强化。32例血管畸形中,T1WI图,16例为等信号,16例为高等混杂信号;T2WI图,3例呈较高信号,29例呈高信号。其中15例增强呈不均匀强化。结论MRI对血管瘤和血管畸形的鉴别诊断有重要价值。Objective To study MRI differential diagnosis of peripheral hemangioma and vascular malformations . Methods MRI findings of peripheral hemangiomas and vascular malformations proved by operation in 61 cases were retrospectively analyzed in comparison with pathological results. Results In 29 cases of peripheral hemangiomas,20 cases showed equal signal intensity （ equal to muscle） and 9 cases showed heterogeneous signal intensity on T1 - weighted images; 24 cases showed increased signal intensity （ approach fat signal） and 5 cases showed markedly increased signal intensity （increase fat signal） on T2 -weighted images,25 cases had septa as low signal network on T2 -weighted images,4 cases showed enhancement separated mass enhancement after intravenous contrast injection. In 32 cases peripheral vascular malfornmtions, 16 cases showed equal signal intensity and 16 cases showed heterogeneous signal intensity on T1 -weighted images. 3 cases showed high signal intensity and 29 cases showed markedly increased signal intensity on T2 - weighted images, 15 cases showed inhomogeneous enhancement after intravenous contrast injection. Conclusion MRI plays an important role in differential diagnosis of peripheral hemangiomas and vascular malformations.

关 键 词：软组织 血管瘤 血管畸形 磁共振成像 

分 类 号：R738.6[医药卫生—肿瘤] R445.2[医药卫生—临床医学]