多房囊性肾癌的超声分析

目的分析多房囊性。肾癌的声像图表现，以提高对此病的认识及诊断率。方法13例多房囊性肾癌患者均行彩色多普勒血流显像（CDFI）和能量多普勒血流显像（PDI）检查，以及CT和（或）MRI动态增强扫描。结果多房囊性肾癌13例中，囊壁增厚或厚薄不均匀11例，囊壁菲薄均匀2例。其中伴壁结节或（和）隔结节10例，分隔厚薄不均匀8例、纤细均匀5例，分隔呈“车辐轮”状4例。3例病灶内可见囊壁和（或）分隔钙化。CDFI和（或）PDI在瘤体内检测到星点状或短条状血流信号10例，CT和（或）MRI增强扫描有不同程度增强11例。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，分隔粗细不均匀，附壁及分隔结节直径均小于6．0mm，CDFI和PDI能提高多房囊性肾癌的诊断率。本病需要与复杂性。肾囊肿及肾癌囊性变等鉴别诊断。

Ultrasonogram analysis of multilocular cystic renal cell carcinoma

Objective To explore the imaging features of multilocular cystic renal cell carcinoma （MCRCC） ,and to improve its diagnostic value. Methods The total of 13 cases of MCRCC were examined with color Doppler flow imaging （CDFI） and power Doppler imaging （PDI）,and contrast enhanced CT or MRI. Results In 13 cases of MCRCC, the cystic wall was thickened and uneven in 11 cases,and even in 2 cases. There were mural nodule and/or septum with nodule in 10 cases. The septation was uneven in 8 cases and even in 5 cases. Calcification of cystic wall and/or septum were found in 3 cases. Blood signals were detected in the tumors by CDFI and/or PDI in 10 cases. Various degress of cystic wall and septurn enhancement were detected by CT and/or MRI after intravenous administration of con- trast material in 11 cases. Conclusion On ultrasonic imagings,MCRCC appeared as a well defined multilocular cystic mass with irregular thickening cystic wall and/or septum, lacking an expansile nodule larger than 6 mm. CDFI and PDI improve the diagnostic value on MCRCC. MCRCC must be differentiated from complex renal cyst and necrotic cystic renal cell carcinoma.