肾血管平滑肌脂肪瘤的影像学表现

Imaging manifestation of renal angiomyolipoma

目的 探讨肾血管平滑肌脂肪瘤（AML）的影像特征,提高其诊断准确率.方法 收集36例肾AML患者的超声、CT、MRI资料,分析其各自的影像特点.结果 超声诊断准确率为63.8%,CT诊断准确率为86.1%,MRI诊断准确率为91.7%.结论 超声、CT、MRI都能确定肾AML的大小、形态、位置和毗邻关系,但MRI更能准确地诊断其内部组织成分及少量出血,并能和肾脂肪瘤、分化好的脂肪肉瘤、肾癌等鉴别,使本病的诊断准确率明显提高.

Objective To improve the accuracy of diagnosis by studying the imaging manifestation of renal angiomyolipoma （AM L）. Methods Cellected the ultrasonic, CT, MRI data of 36 cases renal AML,analysed the imaging manifestation characteristics of each case. Results Accuraus rate of ultrasonic was 63.8%, CT 86.1% and MRI 91.7%. Conclusions Ultrasonic, CT and MRI all could clear the size, shape,position and neighbouring relation of the renal AML, among which MRI could accurately diagnose the internal parts and bleeding. It could also distinguish the kidney lipoma, differentiated liposarcoma, and kidney cancer, thus greatly improve the diagnosis accuracy of this disease.