肾盂癌多层螺旋CT分析  

Multi-spiral CT analysis of the renal pelvis carcinoma

作　　者：连世东[1] 庄美俊[1] 徐哲[1] 刘侃[2] 谭晓天[1] 

机构地区：[1]大连市中心医院放射科,辽宁大连116033 [2]中国协和医科大学中国医学科学院肿瘤医院影像诊断科

出　　处：《实用放射学杂志》2015年第9期1487-1489,1498,共4页Journal of Practical Radiology

摘　　要：目的：探讨肾盂癌的多层螺旋 CT 表现、分型。方法76例经病理证实的肾盂癌患者，回顾性分析其多层螺旋 CT 表现，并根据 CT 表现进行分型。研究各型肾盂癌的多层螺旋 CT 表现差异。结果平扫瘤体呈等或稍高密度（95%），增强扫描瘤体呈较持续性（91%）轻中度强化。所有病例常规分为3种类型：盂内肿块型30例（39%），实质浸润型25例（33%），管壁增厚型21例（28%）。所有病例又可分为2种类型：实质浸润型（33%）、肾盂型（67%）。实质浸润型病例中，伴有肾局部强化减低（80%）、全肾强化减低（20%）、患侧肾积水（48%）、淋巴结转移（52%），静脉瘤栓（16%）；肾盂型病例中，伴有肾局部强化减低（4%）、全肾强化减低（42%）、患侧肾积水（75%）、淋巴结转移（4%），静脉瘤栓（6%）。结论多层螺旋 CT 多期增强扫描能够对肾盂癌进行准确的诊断及分型，各型 CT 表现有明显差异，提高对实质浸润型的认识有利于提高肾盂癌的诊断准确率。Objective To evaluate the multi-spiral CT（MSCT）imaging features and classification of renal pelvis carcinoma.Methods 76 patients of renal pelvis carcinoma proved pathologically were analyzed retrospectively,and divided into different types ac-cording to the MSCT features.The MSCT differences for different types were analyzed.Results Most of the tumors showed iso-density or slight hyperdensity （95%）on un-enhanced images,and persistent mild-to-moderate enhancement （91%）in enhanced images.All cases were divided into three types：pelvic mass type in 30 cases （39%）,substance invasion type in 25 cases （33%）,wall thickening type in 21 cases （28%）.All cases were also divided into two types：substance invasion type（25 cases,33%）and renal pelvis type（5 1 cases,67%）.The occurrence rate of local low enhancement,whole kidney low enhancement,hydronephrosis,lymph node metastasis and vein tumor thrombus were 80%,20%,48%,52%,1 6% in substance invasion type cases,and 4%,42%, 75%,4%,6% in the renal pelvis type cases,respectivily.Conclusion MSCT multiphase enhancement scanning shows important valuation in the diagnosis and classification of renal pelvis carcinoma.Obvious differences of CT features are showed for different types.The diagnosis accuracy may be improved by the knowledge of substance invasion type.

关 键 词：肾肿瘤 癌 肾盂 计算机体层成像 

分 类 号：R737.11[医药卫生—肿瘤] R814.42[医药卫生—临床医学]