肾脏嫌色细胞癌的CT和MRI诊断  

CT and MRI diagnosis of chromophobe cell renal carcinoma

作　　者：徐骁[1] 华佳[1] 许建荣[1] 李磊[1] 柴伟明[1] 华小兰[1] 顾海燕[1] 

机构地区：[1]上海交通大学医学院附属仁济医院放射科,上海200001

出　　处：《中国医学影像技术》2007年第9期1342-1344,共3页Chinese Journal of Medical Imaging Technology

摘　　要：目的探讨肾嫌色细胞癌的CT和MRI表现,提高影像诊断水平。方法回顾性分析19例肾脏嫌色细胞癌的CT和MRI表现,所有病例均经手术病理证实。结果CT检查15例,平扫时病灶呈软组织密度,其中密度均匀7例,密度不均匀8例,增强后病灶呈轻至中度强化。MRI检查8例,病灶T1WI呈等、稍低信号,T2WI、T2WI脂肪抑制序列呈等、稍低信号6例,混杂高信号2例。结论肾脏嫌色细胞癌属少血供肿瘤,CT能清晰显示肿瘤内钙化灶和血供情况,而MRI容易检出肿瘤内小出血灶、囊变坏死灶以及中央星状瘢痕,可对肾脏嫌色细胞癌的诊断提供更多更有价值的信息。Objective To study the CT and MRI findings of chromophobe cell renal carcinoma. Methods CT and/or MR imagings of 19 cases of surgical and pathological proven chromophobe cell renal carcinoma were reviewed and analyzed. Results Fifteen cases were performed CT scans. Seven cases showed homogeneous and the others showed heterogeneous in pre-contrast CT scans. All of them were visualized as mild or medium enhancement. Eight cases were performed MRI scans. Six cases were isointense or hypointense signal compared with renal cortex on T1WI, T2WI and T2WI STIR. Two cases were isointense or hypointense signal on T1WI and heterogeneous hyperintense signal on T2WI and T2WI STIR. Conclusion Enhanced CT clearly showed calcification and blood supply of the tumor while MRI showed small hemorrhage, cystis foci, necrosis and central stellate scar of the tumor. MRI can provide more useful information in detecting chromophobe cell renal carcinoma.

关 键 词：嫌色细胞肾癌 体层摄影术 X线计算机 磁共振成像 

分 类 号：R737.11[医药卫生—肿瘤] R445[医药卫生—临床医学]