Berger N
Laboratoire d'Anatomie Pathologique, Hôtel-Dieu de Lyon.
Arch Anat Cytol Pathol. 1992;40(5-6):272-7.
Urothelial tumors of the kidney arise from the urothelium of the renal pelvis. Most of them are transitional cell carcinomas histologically similar to bladder carcinomas. The new staging system emphasizes the role of kidney parenchyma in the spread of the tumor. Homolateral multifocal lesions are frequent, along with bladder lesions, preceding, simultaneous with or subsequent to upper tract tumor.
肾尿路上皮肿瘤起源于肾盂尿路上皮。其中大多数为组织学上与膀胱癌相似的移行细胞癌。新的分期系统强调肾实质在肿瘤扩散中的作用。同侧多灶性病变很常见，同时还伴有膀胱病变，可先于上尿路肿瘤出现、与上尿路肿瘤同时出现或在其之后出现。
