目的 探讨多层CT在诊断乏脂性 肾血管平滑肌脂肪瘤和非透明细胞肾癌 中的临床价值。方法 采用回顾性研究方 法，2013年2月到2015年12月选择在诊治 的85例非透明细胞肾癌患者(肾癌组)与 42例乏脂性肾血管平滑肌脂肪瘤(脂肪瘤 组)作为研究对象，记录与观察两组的多 层CT常规扫描与增强扫描情况与特征。 结果 肾癌组与脂肪瘤组的肿瘤最大径为 (72.34±21.48)mm和(43.67±15.20)mm， 肾癌组明显大于脂肪瘤组(P<0.05)。肾癌 组的钙化、杯口征、边界模糊、假包膜、 延迟强化、肾外转移等CT特征的发生率 都明显高于脂肪瘤组(P<0.05)。肾癌组 平扫期、皮质期、实质期的CT值分别为 (40.82±2.91)Hu、(74.29±17.30)Hu和 (76.20±13.30)Hu，都明显低于脂肪瘤组 的(50.93±2.78)Hu、(123.95±17.20)Hu 和(114.20±5.20)Hu(P<0.05)。结论 乏 脂性肾血管平滑肌脂肪瘤和非透明细胞肾 癌的临床特征比较类似，从肿瘤最大径、 CT特征与增强CT值能够对二者进行鉴别诊 断，值得推广应用。

Objective To investigate the clinical values of multi-slice CT in the diagnosis of of asteatotic angiomyolipoma of kidney and non-clear cell renal cell carcinoma. Methods Eight-five patients with non-clear cell renal cell carcinoma (RCC group) and 42 patients with angiomyolipoma of kidney (lipoma group) were selected as the research object, recorded and analyzed the characteristics of the multi-slice spiral CT routine scan and enhanced scan in the two groups. Results The maximum diameter of the RCC group and the lipoma group were (72.34±21.48)mm and (43.67±15.20)mm respectively, and the RCC group was significantly higher than that in the lipoma group(P<0.05). The incidence of alcification, cup mouth sign, blurred boundary, false envelope, delayed enhancement, and renal metastasis in the RCC group were significantly higher than that of the lipoma group(P<0.05). The CT values of the RCC group was (40.82±2.91)Hu(plain phase), (74.29±17.30)Hu(cortical phase) and (76.20±13.30)Hu(parenchymal phase), lower than the lipoma group of (50.93±2.78)Hu, (123.95±17.20)Hu and (114.20±5.20)Hu respectively(P<0.05). Conclusion The clinical features of angiomyolipoma of kidney and non-clear cell renal cell carcinoma are similar, they can be differentiated by the maximum tumor diameter, CT features and enhanced CT value, which is worth popularization and application.