颈动脉体瘤的磁共振诊断价值及误诊分析  

The diagnostic value of MRI in carotid body tumor and misdiagnostic analysis

作　　者：李玮[1] 崔光彬[1] 秦越[1] 熊小双[1] 王玮[1] 

机构地区：[1]第四军医大学唐都医院放射科,陕西西安710038

出　　处：《医学影像学杂志》2006年第12期1253-1255,共3页Journal of Medical Imaging

摘　　要：目的探讨磁共振成像在颈动脉体瘤诊断中的价值。方法回顾性分析经手术病理证实的8例颈动脉体瘤的MRI表现,复习文献并分析1例误诊原因。结果7例术前诊断符合病理结果,1例误诊为神经源性肿瘤。8例病变均位于颈总动脉分叉处。MRI表现为等T1WI、稍高T2WI为主的混杂信号,瘤体内见流空血管影,其中6例行增强扫描,瘤体呈显著不均匀强化,5例行MRA检查,表现为颈动脉分叉角扩大。结论颈动脉体瘤具有一定的特征性磁共振表现,对颈动脉体瘤诊断有较高的诊断价值。Objective： To study the application values of MRI in diagnosis of carotid body tumor. Methods： The MBI features of 8 cases of carotid body tumor confirmed by pathology were retrospectively analyzed, reviewed the literature and misdiagnostic causes. Results：7 cases and another case were misdiagnosed to be neurogenic tumour. All 8 cases were located at the level of carotid artery bifurcation. All cases showed iso-intansity signal in T1WI and uneven slightly-high-intensity signal on T2WI,flow void was seen in tumor body. 6 cases were uneven enhanced significantly after gadolinium administration, .and 5 cases showed enlarged carotid artery bifurcation in MRA. Conclusion： Carotid body tumors have characteristic MRI findings, and MRI has higher diagnostic valae in carotid body tumor.

关 键 词：颈动脉体瘤 磁共振成像 

分 类 号：R730.264[医药卫生—肿瘤] R445.2[医药卫生—临床医学]