肾血管平滑肌脂肪瘤特征性CT表现的诊断价值  

The significane of characteristic CT mapping in diagnosis of renal angiomyolipoma

作　　者：张树宝[1] 颜广林[1] 何银[1] 

机构地区：[1]江苏省连云港市第一人民医院影像科,222002

出　　处：《蚌埠医学院学报》2007年第1期93-94,共2页Journal of Bengbu Medical College

摘　　要：目的:探讨肾血管平滑肌脂肪瘤(renal angiomyolipom a,RAL)CT影像特征的诊断价值。方法:收集RAL 22例,均行CT常规扫描,其中14例行增强扫描,5例经薄层或薄层放大扫描,3例行像素CT值测定;10例经手术病理证实RAL,12例经半年以上随访证实RAL。结果:RAL CT影像表现为脂肪密度影内伴点状、条片状软组织密度影,脂肪密度影多呈偏心性分布为主和不规则蜂窝状分布。生长特点的CT影像改变有多中心生长,双侧发病;向外突出生长;向外突出沿包膜下匍匐性生长的表现。结论:在肿瘤中测得脂肪密度影是诊断该病的关键。多发、双侧、外突性改变及肾实质边缘“轮齿状”缺损对诊断均有很大价值。Objective ：To estimate the value of CT mapping in diagnosis of renal angiomyolipoma （RAL）. Methods： Twenty-two cases of RAL were collected, 10 of which were proved by pathological examination and 12 Cases by at least 6 - month following up. All the cases were performed routine CT Scan. Fourteen eases received enhanced CT scan, 5 cases target scan and 3 cases pixel CT value measuring. Results：The pathologic characteristics of CT were spotty and streak soft tissues in the fatty density and the adipose tissues were always eccentric and of the shape of irregular honey-comb. The growth manifestations of RAL in CT were multiple centers, bilateral and protruding outward growth or creeping under the capsule. Condusions：The detection of fatty density was the key to diagnosis of RAL. Multiple lesions, bilateral or protruding change and the defect like teeth of a cog＇wheel along the edge of parachyma were of great value to the diagnosis.

关 键 词：肾肿瘤 血管平滑肌脂肪瘤 X线计算机 断层摄影术 诊断 鉴别 

分 类 号：R737.11[医药卫生—肿瘤]