肾血管平滑肌脂肪瘤的影像诊断  

Imaging diagnosis of renal angiomyolipoma

作　　者：孙清荣[1] 何小荣[2] 刘士辰[1] 陈垦[1] 王果兵 

机构地区：[1]第三军医大学附属新桥医院放射科,重庆400037 [2]重庆市巴南区人民医院放射科,重庆401320 [3]重庆市长寿县人民医院放射科,重庆401220

出　　处：《第三军医大学学报》2000年第12期1204-1206,共3页Journal of Third Military Medical University

摘　　要：目的　探讨肾血管平滑肌脂肪瘤的影像特点及鉴别诊断。方法　 30例手术标本 ,经病理证实的肾血管平滑肌脂肪瘤 ,术前均行CT和超声检查 ,MRI检查者 5例。结果　CT示肿瘤呈圆形或椭圆形 ,分界清楚 ,密度不均或均匀 ,脂肪呈点、片或网格状分布于瘤体中央或边缘 ,部分病例有尖嘴征。超声表现为高或等回声。结论　CT、超声对肾血管平滑肌脂肪瘤有特征性诊断价值 ,对少脂肪或无脂肪者 。Objective To explore the imaging features and differential diagnosis of renal angiomyolipoma. Methods The image findings of 30 cases of angiomyolipoma confirmed by operation and pathological methods were studied. All patients underwent CT scans and ultrasonography, 5 patients underwent MRI before the operation. Results With CT scan, the tumors showed round or elliptic in shape with clear edge and the density were homogenous or heterogenous. The fat as dot, patch or net appearances located in the center or brim of tumors. Protrusion like beak could be seen in some tumors. Ultrasonography showed high or equal echo for the tumors. Conclusion CT and ultrasonography can play important roles in diagnosis of renal angiomyolipoma. When tumors have no or minimal fat, the plain thin section high resolution CT scan and enhanced CT scan will be helpful for the diagnosis.

关 键 词：肾血管平滑肌脂肪瘤 影像学诊断 鉴别诊断 

分 类 号：R737.110.4[医药卫生—肿瘤]