Stewart-Treves 综合征的 MRI 表现  

The MRI findings of Stewart-Treves syndrome

作　　者：李滨[1] 金延方[1] 刘洪亮[1] 石峰[2] 王振常[3] 

机构地区：[1]首都医科大学附属北京世纪坛医院MR室,北京100038 [2]首都医科大学附属北京世纪坛医院病理科,北京100038 [3]首都医科大学附属北京友谊医院放射科,北京100050

出　　处：《实用放射学杂志》2017年第2期266-269,共4页Journal of Practical Radiology

基　　金：北京市医管局“使命”人才计划项目（SML20150101）.

摘　　要：目的：探讨 MRI 对 Stewart-Treves 综合征（STS）的诊断价值。方法回顾性分析48枚 STS 肿物的 MRI 表现,并与病理结果对照分析。结果48枚肿物均为实性,直径≥4 mm,根据 D2-40、CD31的表达结果将 STS 分为2型,STS-Ⅰ型（即血管肉瘤）47枚结节肿物,MRI 表现：T1 WI 呈稍低信号,T2 WI 呈稍高信号,与同层肌肉比较,结节信号明显增高,增强检查呈明显强化、且均匀。STS-Ⅱb 型（混合型淋巴管肉瘤）1枚肿块样肿物；MRI 表现：T1 WI、T2 WI 序列均呈高低混杂信号,以高信号为主,强化程度较低且不均匀。结论MR 能显示 STS 特征性信号表现,结合患者肢体慢性淋巴水肿病史,可以提高术前正确诊断率。Objective To evaluate the value of MRI diagnosis in Stewart-Treves syndrome（STS）.Methods The 48 STS nodules proved by pathology were retrospectively studied,which compared the MRI findings and pathological results.Results All nodules were solid and more than 4 mm in diameter.According to the expression of D2-40 and CD31,all nodules were divided into two types.The 47 nodules were divided into STS type I（hemangiosarcoma）.The MRI findings showed slightly low signal on T1 WI and slightly high signal on T2 WI,while were higher than the muscular signal.Additionally,all nodules of STS type I were remarkably enhanced.The 1 mass-like-shape cases wsa divided into STS type Ⅱb （mixed lymphangiosarcoma）.The MRI findings showed heterogeneous signal on both T1 WI and T2 WI,in which the high signal was leading.And the enhancement showed the low-level inhomogeneous signal.Conclusion MRI could be a valuable tool for the diagnosis in STS because of the characteristic signal on MRI.And if combined with the history of chronic upper limb lymphedema,the diagnostic accuracy could be improved before surgery.

关 键 词：Stewart-Treves综合征 磁共振成像 

分 类 号：R557.4[医药卫生—血液循环系统疾病] R445.2[医药卫生—内科学]