多房囊性肾癌的CT、MRI表现及鉴别诊断  

CT and MRI findings and distinction of multilocular cystic renal cell carcinoma

作　　者：李多[1] 张伟[2] 焦晟[1] 李惠章[1] 韦嘉瑚[1] 周诚[1] 

机构地区：[1]北京医院放射科,北京100730 [2]北京医院病理科,北京100730

出　　处：《医学影像学杂志》2009年第4期438-442,共5页Journal of Medical Imaging

摘　　要：目的:分析多房囊性肾癌的影像学表现,以提高对此病的认识及正确诊断率。方法:回顾性的分析病理证实的9例多房囊性肾癌患者的CT/MRI图像,其中1例患者为双侧多房囊性肾癌。结果:10个病灶,均边界清楚。8个病灶囊壁局部增厚,2个囊壁菲薄。3个病灶间隔菲薄,4个间隔增厚不均匀,3个间隔增厚并有结节。增强扫描囊壁及分隔均不同程度强化。2个病灶见囊壁和/或间隔钙化。Bosniak分级ⅡF级3个,Ⅲ级7个。结论:多房囊性肾癌多表现为多房囊性肿物,边界清楚,囊壁可有局部增厚,间隔粗细不均,附壁及间隔结节直径小于5mm。需要与肾囊肿及肾癌囊性变鉴别,表现典型者可作出正确诊断。Objective：To explore the imaging features of muhilocular cystic renal cell carcinoma, （MCRCC） and to evaluate its clinical value.Methods：The CT and MRI findings of MCRCC in 9 patients proved by operation and pathology were retrospectively reviewed, one of the patients had bilateral MCRCC. Results： 10 tumors all appeared as well-defined multilocular cystic mass with thin coarse septum in 3 cases, irregular thickening septum in 4 eases and septum with nodule in 3 eases. The cystic wall presented with irregular thickening in 8 eases, 2 cases with thin cystic wall. Various degrees of cystic wall and septum enhancment were detected after intravenous administration of contrast material. Calcification of cystic wall and/or septum were found in 2 eases. 3 of 10 tttmors were elasshqed as Bosniak classifica- tion category Ⅱ F and the others were classified as category Ⅲ Conclusion： On CT and MRI images, MCRCC appeared as a well-defined multilocular cystic mass with irregular thickening cystic wall and/or septum, lacking an expansile nodule larger than 5 mm. MCRCC must be differentiated from renal cyst and necrotic cystic renal cell carcinoma （NCRCC）. We could get definite diagnosis with that typical features.

关 键 词：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] R814.42[医药卫生—临床医学]