Oyen R H, Gielen J L, Van Poppel H P, Verbeken E K, Van Damme B J, Baert L V, Baert A L
Department of Radiology, University Hospitals Catholic University Leuven, Belgium.
Radiology. 1988 Dec;169(3):705-7. doi: 10.1148/radiology.169.3.3186995.
Abdominal radiography, excretory urography, retrograde pyelography, and computed tomography were performed in two patients who had undergone retrograde pyelography with thorium dioxide (Thorotrast) approximately 40 years ago. Both patients developed a transitional cell carcinoma due to suburothelial thorium deposition. Typical thorium densities were demonstrated at CT in the peripelvicalyceal area as well as in retroperitoneal lymph nodes. Elderly patients in whom radiographic examination reveals retained Thorotrast in the kidney should be followed up because of the high risk of renal carcinoma.
对两名大约40年前曾接受过二氧化钍（钍造影剂）逆行肾盂造影的患者进行了腹部X线摄影、排泄性尿路造影、逆行肾盂造影和计算机断层扫描。两名患者均因输尿管下钍沉积而发生移行细胞癌。CT显示肾盂肾盏周围区域以及腹膜后淋巴结有典型的钍密度。由于肾癌风险高，对于X线检查显示肾脏中残留钍造影剂的老年患者应进行随访。
