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目的:分析囊性肾癌的CT表现,探讨多层螺旋CT的诊断价值。方法:回顾性分析11例囊性肾癌的临床表现、CT及病理资料。CT成像技术为采用64排螺旋CT平扫及三期增强扫描,并行冠状位、矢状位的多平面重建。结果:11例囊性肾癌均显示为囊性或囊实性肿块,规则或不规则,大小不一,均有囊壁增厚。其中壁结节占9例,瘤内分隔占4例,囊壁钙化占4例。囊壁及分隔厚薄不均,增强后可见囊壁、囊内分隔及壁结节的强化,主要呈“快进快出”的特征。多平面重建图像显示肿瘤细节及其与周围结构关系更加清晰。结论:囊性肾癌具有一些特征性的CT征象,多层螺旋CT多期增强扫描及多平面重建有助于明确诊断,但需与肾脏其他囊性病变相鉴别。
Objective: To analyze the CT findings of cystic renal cell carcinoma and to explore the diagnostic value of multi-slice spiral CT. Methods: Retrospective analysis of 11 cases of cystic renal cell carcinoma of the clinical manifestations, CT and pathological data. CT imaging using 64-slice spiral CT and three enhanced scan, parallel coronal, sagittal multiplanar reconstruction. Results: All the 11 cases of cystic renal cell carcinoma showed cystic or cystic mass, regular or irregular, with different sizes, all had wall thickening. Including 9 cases of wall nodules, intratumoral separation accounted for 4 cases, wall calcification in 4 cases. Wall and the separation of the thickness of the uneven, enhanced after visible wall, cystic separation and nodular enhancement, mainly in “fast forward fast” feature. Multiplanar reconstruction images show tumor details and their relationship to the surrounding structures more clearly. Conclusion: Cystic renal cell carcinoma has some characteristic CT signs. Multi-slice spiral CT multi-phase enhanced scan and multiplanar reconstruction are helpful to confirm the diagnosis. However, they should be differentiated from other cystic lesions of kidney.