Takahashi N, Yanagiya H, Kawaguchi T, Higashino I, Suzuki T
Department of Urology, Hirosaki University School of Medicine.
Hinyokika Kiyo. 1993 Dec;39(12):1125-9.
In 5 patients with invasive renal pelvic cancer, we evaluated the imaging features of drip infusion pyelography (DIP), retrograde pyelography (RP), ultrasonography (USG), computerized tomography (CT), magnetic resonance imaging (MRI) and renal angiography (RAG). The different features of high diagnostic value were as follows. DIP revealed no visualization with enlargement and reniform outline. RP revealed irregular, serrated filling defect of the pelvis with destruction of the involved calyces and infundibula. USG revealed loss of normal parenchymal architecture with amputation of the central echo complex due to echogenic mass. CT revealed widened renal parenchyma and the involved parenchymal segment, which was replaced by tumor mass with inhomogeneous density and minimal enhancement. MRI denoted renal vein thrombus. RAG revealed, besides the fine neovascularity with tumor blush, hypovascularity in the involved area. In addition to these features, we believe that in particular, RP, USG, CT and RAG are useful tools for patients with non-functioning kidney.
在5例浸润性肾盂癌患者中，我们评估了静脉滴注肾盂造影（DIP）、逆行肾盂造影（RP）、超声检查（USG）、计算机断层扫描（CT）、磁共振成像（MRI）和肾血管造影（RAG）的影像学特征。具有高诊断价值的不同特征如下。DIP显示肾盂无显影，肾盂增大且呈肾形轮廓。RP显示肾盂不规则、锯齿状充盈缺损，受累肾盏和漏斗部破坏。USG显示正常实质结构消失，由于回声团块导致中央回声复合体截断。CT显示肾实质增宽及受累实质节段，被密度不均匀且强化轻微的肿瘤肿块取代。MRI显示肾静脉血栓形成。RAG显示，除了肿瘤染色的细小新生血管外，受累区域血管减少。除了这些特征外，我们认为，特别是RP、USG、CT和RAG对无功能肾患者是有用的检查手段。
