肾上腺外副神经节瘤的影像分析与鉴别诊断  

The Image Analysis and Differential Diagnosis of Extra-adrenal Paragangliomas

作　　者：车友谊[1] 张谦[1] 肖浩[1] 陈燕萍[2] 

机构地区：[1]南方医科大学东莞广济医院放射科,广东东莞523690 [2]广州南方医科大学南方医院影像中心,广东广州510515

出　　处：《中国CT和MRI杂志》2016年第8期14-16,共3页Chinese Journal of CT and MRI

基　　金：东莞市科技计划项目:201410515000182

摘　　要：目的探讨肾上腺外副神经节瘤的影像(CT、MR)特点,提高其诊断准确率。方法对25例肾上腺外副神经节瘤的的影像资料进行分析,探讨CT和MRI诊断肾上腺外副神经节瘤的的价值。结果 8例位于腹主动脉旁占(8/25),14例位于头颈部占14/25(其中9例颈动脉体瘤,位于颈、内动脉分叉处;5例颈静脉球瘤),2例位于内脏(1例位于膀胱;1例位于十二指肠降段粘膜下),2例位于椎管内。肿瘤以囊实性为主,与周围组织分界清晰,MR及CT平扫肿瘤信号及密度不均匀,增强扫描实性部分可明显强化。小于20mm肿瘤信号及密度较均匀,无液化、坏死,无钙化,大于20mm肿瘤均出现不同程度囊变、坏死,肿瘤越大,囊变坏死越明显,大于100mm的肿瘤内部还会出现钙化。结论肾上腺神经节细胞瘤的CT和MRI表现具有一定特征性,在肿瘤的定位、定性诊断及血供特点、浸润程度及鉴别诊断方面可互相补充,对肾上腺外副神经节瘤患者临床术前诊断具有重要价值。Objective To investigate the image （CT, MR） features of the extra-adrenal paragangliomas to improve their diagnostic accuracy.Methods 25 cases of extra-adrenal paragangliomas data were analyzed and to explore the diagnostic value of extra-adrenal paragangliomas.Results 8 cases located beside the abdomial aorta, 14 cases in the head and neck, 2 cases in abdominal organs, 2 cases in the spinal canal.The tumors were cystic and solid, with clear boundary, heterogeneous density or intensity, the solid part can be significantly enhanced after enhancement. Tumors less than 20 mm had uniform density or signal, without liquefaction, necrosis, nor calcification. Tumors larger than 20mm had different degrees of cystic degeneration, necrosis, and the cystic necrosis were more obvious if the tumor were larger, tumor larger than 100mm will combine calcification. Conclusion The CT and MRI manifestation of the extra-adrenal paragangliomas had certain characteristic, and can complement each other in the tumor location, qualitative analysis and reflex the blood supply, infiltration degree of differential diagnosis, which had important value in clinical before operation.

关 键 词：肾上腺外副神经节瘤 影像 分析 鉴别诊断 

分 类 号：R739.43[医药卫生—肿瘤] R814.42[医药卫生—临床医学]