摘要
目的 :研究早期肾透明细胞癌的超声、螺旋CT、MRI表现 ,提高其诊断水平。材料和方法 :回顾性分析经手术病理证实的 13例早期肾透明细胞癌的超声、螺旋CT和 9例MRI表现。结果 :13例早期肾透明细胞癌中 ,超声显示无回声肿块 7例 ,厚壁型囊性肿块 5例 ,多房囊状、分隔厚薄不一肿块 1例。 13例螺旋CT均显示肿块为低密度病灶 ,CT增强扫描示病灶均呈不均匀增强。 9例MRI示肿块信号强度不均 ,T1WI为低信号 ,T2WI为不均匀性高信号 ,4例增强扫描均呈不均匀增强。术前超声诊断为 5 /13 ,CT为 7/13 ,MRI为 7/9,超声结合CT为 13 /13 ,超声结合CT和MRI为 9/9。结论 :仅用超声或螺旋CT检查诊断早期肾透明细胞癌较困难。超声结合螺旋CT或MRI ,综合影像检查能提高其诊断水平。
Purpose: To study Us,CT and MRI features of renal clear cell carcinoma in the early stage. Materials and Methods: The Us,CT and MRI appearances of 13 patients with renal clear cell carcinoma in the early stage,proved by operation and pathology,were retrospectively studied. Results: Of 13 cases,Us showed no echo masses(n=7), thick cystic wall masses (n=5)and multiple cystic mass (n=1),but CT showed hyper dense masses (n=13) with heterogeneous enhancement after administration of contrast media. Of 9 cases, MRI showed the masses having long T1 and long T2 heterogeneous signa1intensity (n=9),and heterogeneous enhancement (n=4)after a dministration of Gd-DTPA. The accurate diagnosis was 5/13 cases by Us, 7/13cases by CT, 7/9cases by MRI,and13/13cases by Us and CT,9/9cases by Us, CT and MRI. Conclusion: It is difficult to get a accurate diagnosis for some rena1 clear cell carcinomas in the early stage,just only by Us or CT, but complex Us and CT or MRI could improve accuratle diagmosis.
出处
《中国医学影像学杂志》
CSCD
2005年第2期133-135,共3页
Chinese Journal of Medical Imaging
