椎管内副神经节瘤的MR I诊断  

MRI diagnosis of spinal paraganglioma

作　　者：袁菁[1] 高培毅[1] 

机构地区：[1]首都医科大学附属北京天坛医院放射科,北京100050

出　　处：《实用放射学杂志》2015年第3期349-352,共4页Journal of Practical Radiology

摘　　要：目的：总结椎管内副神经节瘤的 MRI表现，提高影像诊断水平。方法经手术病理证实的椎管内副神经节瘤6例，回顾性分析其 MRI表现。结果6例椎管内副神经节瘤均发生于腰部椎管内，其中5例肿瘤上方的椎管内可见迂曲血管。2例较小的肿瘤表现为信号均匀的实性肿块，增强扫描为较均匀强化。4例较大的肿瘤信号不均匀，肿瘤内可见囊变出血或肿瘤边缘可见含铁血黄素沉积。结论椎管内副神经节瘤上方椎管内可见迂曲血管。T2 WI显示肿瘤内囊变出血或肿瘤周边含铁血黄素沉积是肿瘤的特征性表现。Objective To summarize the MRI findings of spinal paraganglioma,in order to improve the diagnostic accuracy of imaging. Methods The MRI findings of 6 patients with spinal paraganglioma were retrospectively reviewed.All cases were proved by pathology.Results All 6 cases of spinal paraganglioma were located in lumbar spinal canal.There were serpentine vessels shade observed above the tumor in 5 cases.Two cases with smaller size of lesions exhibited as homogeneous signal intensity with homogenous enhancement. The other 4 cases with larger size of tumors exhibited as heterogeneous signal intensity because of intratumoral cystic change,hem-orrhage and hemosiderin deposit at the margin of the tumor.Conclusion Serpentine vessels above the tumor can be seen in spinal paragangliomas.Intratumoral cystic change and hemorrhage,hemosiderin deposit at the margin of the tumor are the MRI character-istics of spinal paraganglioma.

关 键 词：脊柱 副神经节瘤 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]