[Varicosities of the renal veins, the renal pelvis and the ureteric veins (author's transl)].

Varicosities of the renal veins and of the veins of the upper urinary tract may occur with or without haematuria. The urogram may be negative. Frequently, however, there are single or multiple impressions on the ureters as a result of the venous varicosities. Arteriography, which should always be carried out in the presence of undiagnosed haematuria, is unable to demonstrate the venous abnormalities. Since the symptoms are also not characteristic, it is necessary to carry out renal vein pharmaco-phlebography. The clinical features, radiological appearances and aetiology of this rare condition are illustrated by three cases.