钙化性腱膜纤维瘤的MRI诊断(附5例报道并文献复习)  

MRI diagnosis of calcifying aponeurotic fibroma(report of five cases and review of the literature)

作　　者：金腾[1] 汪巧玲[1] 李小明[1] 王仁法[1] 

机构地区：[1]华中科技大学同济医学院附属同济医院放射科,武汉市430030

出　　处：《放射学实践》2015年第5期587-590,共4页Radiologic Practice

摘　　要：目的:探讨钙化性腱膜纤维瘤(CAF)的MRI表现,提高对该病的影像学诊断水平。方法:回顾性分析经手术及病理证实的5例钙化性腱膜纤维瘤的临床及MRI表现,所有腱膜纤维瘤患者均行MRI检查,其中2例加行MRI增强扫描。结果:5例CAF中3例病灶位于手部,1例位于肘窝,1例位于跟腱,所有病例均可见软组织肿块,病灶紧贴肌腱生长并向邻近软组织浸润。T1WI上4例病灶呈与肌肉等同的信号,1例信号比肌肉稍低;T2WI上5例CAF均呈不均匀高信号或混杂信号,即高信号背景下可见点片状低信号;2例病灶内可见团状T1WI、T2WI均呈低信号的钙化灶;2例增强扫描病灶呈中等强化,低信号区不强化。结论:MRI可以完整显示钙化性腱膜纤维瘤的部位、大小、信号特点,可为术前诊断提供重要信息。Objective：Investigating the imaging findings of calcifying aponeurotic fibroma （CAF） ,in order to improve the level of diagnosis in this disease. Methods：The MR images of 5 CAF cases were retrospectively evaluated. All were con- firmed calcifying aponeurotic fibroma by surgery and pathology. All the patients were examined by MRI, and two of them received contrast enhanced MRI,and the literature was reviewed. Results：Of the five cases, three of them were located in hands,one in achilles and one in elbow. MRI as a representative of imagings with CAF appeared as focal lohular masses adjacent to tendon,tendon sheaths or articular capsule. On T1WI, the signal intensities of the calcifying aponeurotic fibroma were equalled to those of muscle in 4 cases and were lower than those of muscle in one cases. On T2WI,the signal were mixed, you can see flake-like low signal were distributed in high signal background. Calcification were seen on two cases which is both low in T1 WI and T2 WI. The lesions were moderately unhomogeneous enhancement following Gd-DTPA administration and the low signal which seen in TzWI showed no enhancement. Conclusion： MRI can show the position.size. signal characteristics,which are very conductive to establish the pre-surgical diagnosis of calcifying aponeurotic fibroma.

关 键 词：钙化性腱膜纤维瘤 磁共振成像 病理学 诊断 鉴别 

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