双侧颈动脉体瘤的CT和MRI诊断  

CT and MR Imaging Diagnosis of the Bilateral Carotid Body Tumor

作　　者：曹代荣[1] 李银官[1] 倪希和[1] 游瑞雄[1] 林钊[1] 方哲明[1] 郑贤应[1] 

机构地区：[1]福建医科大学附属第一医院影像科,福州350005

出　　处：《中国医学影像学杂志》2008年第5期339-342,共4页Chinese Journal of Medical Imaging

摘　　要：目的:探讨双侧颈动脉体瘤CT、MRI影像表现。材料和方法:回顾性分析9例双侧颈动脉体瘤的CT和MRI影像表现及其临床资料。结果:9例双侧颈动脉体瘤影像表现为双侧舌骨水平颈动脉鞘区肿块,平扫呈较均匀的等密度或中等信号,增强扫描肿块明显增强。螺旋CT薄层图像可见肿块周边迂曲扩张的供血动脉(5/6),颈内、外动脉间距增宽。MRI最为特征表现是肿块内或周边迂曲条状的血管流空影(10/13)。结论:双侧颈动脉体瘤的CT和MRI表现具有特征性,术前可以做出定性诊断。Purpose： To study CT and MRI findings of the bilateral carotid body tumors （BCBT）. Materials and Methods： The CT and MRI features of 9 BCBT were analyzed retrospectively. Results： CT and MRI appearances of 9 bilateral carotid body tumors were in the region of the carotid sheath at bilateral hyoid level. The tumors showed as a mass with homogeneity or slight inhomogeneity iso-density on CT or medium signal intensity on MRI without contrast medium. After enhancement, the tumor represented obvious enhancing mass. The imaging of the thin slice spiral CT showed tortuous and dilated feeding artery （5/6） around the mass. The distance between internal carotid artery and external carotid artery was increased. On MRI the characteristic findings were tortuous and flow void vessels within and around mass. Conclusions： The imaging of CT and MRI in the bilateral carotid body tumors provides characteristic findings, and a corret diagnosis can be made before operation.

关 键 词：双侧颈动脉体瘤 CT MRI 

分 类 号：R732.21[医药卫生—肿瘤]