肾嗜酸细胞腺瘤的动态增强CT征象分析

[目的]探讨动态增强CT对肾嗜酸细胞腺瘤术前诊断的价值.[方法]回顾性分析经手术、病理证实的13例肾嗜酸细胞腺瘤的动态增强CT表现,记录病灶部位、大小、密度、边缘、强化形式,分别测量病灶在CT动态增强各期的CT值.[结果]CT平扫;13例肾嗜酸细胞腺瘤平均直径4.64 cm,3例密度均匀,7例病灶内见瘢痕样低密度影,3...

Analysis of the dynamic enhancement CT signs of renal oncocytoma

[Objective] To investigate the value of dynamic enhancement CT in the preoperative diagnosis of renal oncocytomas.[Methods] The tumor signs on dynamic enhancement CT,including the location,size,density,margin,the patterns of enhancement and CT values on dynamic enhancing phases were observed retrospectively.[Results] Plain scan revealed that average diameter of 13 tumors was 4.64 cm.Five of them were encapsulated,7 of them were with central stellate scar,3 homogeneous and 3 heterogeneous.Dynamic enhancement scan indicated that solid portion of the tumors were persistent enhancement obviously,with the average CT values of 94 Hu,110 Hu,90 Hu,respectively at cortical,parenchymal and excretory phase.The central stellate scar had light enhancement.Three oncocytomas showed thick vessel shadows in them at cortical phase.Two cases presented segmental enhancement inversion.[Conclusions] Renal oncocytomas have certain features on dynamic enhancement CT,which helps to differentiate the tumor from renal carcinoma preoperatively.