肾上腺外腹膜后副节瘤的CT、MRI表现  

CT and MRI Findings of Extraadrenal Retroperitoneal Paraganglioma

作　　者：王亚蓉[1] 王欣璐[1] 王璐[1] 杨健[1] 杨广夫[1] 郭佑民[1] 鱼博浪[1] 王泽忠[1] 王莉君[1] 杨志英[1] 

机构地区：[1]西安医科大学第一临床医学院医学影像中心,710061

出　　处：《实用放射学杂志》2000年第2期67-69,共3页Journal of Practical Radiology

摘　　要：目的:研究肾上腺外腹膜后副节瘤CT、MRI表现。方法:本组经手术病理证实14例,其中男7例,女7例,平均年龄39.2岁。其中功能性副节瘤8例,非功能性副节瘤6例;良性9例,恶性5例。CT平扫检查9例,其中5例作了强化扫描;MRI检查6例。结果:病变<10cm者9/11例良性,>10cm3/3恶性;<5cm者5/6例功能性,>5cm者6/8例为非功能性。CT密度和MRI信号强度对鉴别良恶性作用不大,但出现明确囊变恶性多见(4/5例),有明确侵犯者4/4例恶性。结论:腹膜后副节瘤的CT、MRI表现多样,其大小、囊变及侵犯对鉴别良恶性有帮助。Objective:To study the CT and MRI findings of extraadrenal retroperitoneal paraganglioma.Methods:14 cases of extraadrenal retroperitoneal paraganglioma proved by pathology were presented.There were 7 males and 7 females,with an average of 39.2 years.There were 8 cases of functional tumor and 6 cases of non-functional tumor,9 cases of benign tumor and 5 cases of malignant tumor.CT studies were done in 9 cases,of which contrast enhanced CT were obtained in 5 cases.MRI was done in 6 cases.Results:9 of 11 tumors less than 10 cm in diameter were benign,and all 3 cases more than 10 cm in diameter were malignant.5 of 6 tumors less than 5 cm in diameter were functional tumor,and 6 of 8 tumors more than 5 cm in diameter were non-functional tumor.No correlation was noted between the CT density and MRI signal intensity for benign and malignant differentiation.But 4 of 5 tumors with obvious necrosis and all 4 cases with invasion of adjacent tissues were malignant tumor.Conclusion:CT and MRI appearances of extraadrenal paraganglioma are various.The size,necrosis and invasion character are the reliable indicators of differentiating malignant tumor from benign one.

关 键 词：腹膜后副节瘤 肾上腺外 CT NMR 成像 

分 类 号：R735.404[医药卫生—肿瘤] R730.44[医药卫生—临床医学]