多囊性肾发育不良的影像学表现  

Imaging features of multicystic dysplastic kidney

作　　者：王瑞珠[1] 唐文伟[1] 

机构地区：[1]南京医科大学附属南京儿童医院放射科,江苏南京210008

出　　处：《实用放射学杂志》2012年第9期1445-1447,共3页Journal of Practical Radiology

摘　　要：目的 探讨多囊性肾发育不良（MCDK）的影像学表现及与其他相关肾多囊性疾病的鉴别.方法 回顾性分析经临床及手术病理证实的17例MCDK的影像学资料.结果 17例MCDK均为单侧,左侧8例,右侧9例,其中异位MCDK 1例.9例CT扫描显示患肾由大小不等、数量不一、低密度囊腔构成,囊间互不相通,有间隔;4例增强扫描,其中2例囊壁及分隔轻到中度强化.MRI表现为肾区内多个T1WI低信号、T2WI高信号的囊性病灶;5例同时行静脉肾盂造影（IVP）检查,患肾均未显影.结论 MCDK是肾脏的少见病变,CT和MRI能准确显示MCDK的特征,MRI可发现细小病变及相关泌尿系其他并发症.Objective To study the imaging appearances and differential diagnosis of multicystic dysplastic kidney （MCI）K） . Methods The imaging data of 17 cases with MCDK confirmed hy pathology and surgery were analyzed retrospectively. Results In all 17 cases,MCI）Ks presented all in unilateral kidney, including right side in 9 and left side in 8, one was ectopic. CT （9 cases） showed the lesions were composed by various sizes,numerous multiple non-communicating low density cysts. 4 cases underwent contrast enhanced CT scan ,which showed moderate enhancement in septa in 2 eases. MRI showed numerous cysts with hypointensity signal on T1W1 and hypcrintensity signal on T2WI. Among all the cases , 5 cases underwent intravenous pyelography, the involved kidneys did not developed. Conclusion MCDK is a rare disease of the kidney. CT and MRI can show characteristic features of MCDK,especially MRI（ MRU）can reveal small lesions and other urinary complications.

关 键 词：肾脏 多囊肾 体层摄影术 X线计算机 磁共振成像 

分 类 号：R692[医药卫生—泌尿科学] R814.42[医药卫生—外科学]