嫌色细胞肾癌的CT诊断  

CT diagnosis of chromophobe renal cell carcinoma

作　　者：吴明灿[1] 韩春宏[1] 谢长远[1] 徐彦辉[1] 刘洪超[2] 

机构地区：[1]余姚市人民医院放射科,浙江余姚315400 [2]第二军医大学附属长征医院影像科

出　　处：《实用放射学杂志》2013年第3期433-435,共3页Journal of Practical Radiology

摘　　要：目的 探讨嫌色细胞肾癌（CRCC）的CT表现，以提高诊断准确性。方法 回顾性分析9例经手术病理证实的CRCC，术前行CT平扫及双期（皮髓交界期和实质期）增强扫描。结果 病灶位于左肾5例，右肾4例，最大径2～14 cm，平均5.8 cm。9例CT检查中，6例病灶平扫呈等密度或以等密度为主，1例病灶中见高密度影。增强后的皮髓交界期，9个病灶的实质部分强化程度均高于髓质，但低于皮质；实质期，9个病灶密度均明显低于肾实质。结论 CRCC在CT增强扫描上具有一定的特征，有助于与其他肾肿瘤鉴别。Objective To evaluate CT findings of chromophobe renal cell carcinoma（CRCC} ,in order to improve accuracy of CT diagnosis of this tumor. Methods 9 patients with chromophobe renal cell carcinoma proved by pathology were retrospectively analysed. All cases underwent spiral CT scan including unenhanced scan,cortico-medullary phase and nephrographic phase eontrost-enhanced scans. Results Of all the 9 lesions,5 located in left kidney and 4 in right kidney. Maximum diameter of the tumors ranged from 2 to 14 cm with average of 5.8 cm. At unenhanced CT scan,6 lesions were totally or mainly iso-intense, 1 lesion with high CT attenuation structure in it. At contrast-enhanced scan, 9 lesions showed enhancement at renal medulla and renal cortex but lower than that of cortex,and also lower than that of renal parenchyma on parenchymal phase. Conclusion CRCC has certain characteristics at contrast-enhanced CT,which are helpful in differentiating CRCC from other renal tumors.

关 键 词：肾脏 肾癌 计算机体层成像 

分 类 号：R737.11[医药卫生—肿瘤] R814.42[医药卫生—临床医学]