[Malformation of the renal venous system and caudal vena cava presenting as recurrent hematuria].

The authors report a case of haematuria secondary to ureteric varices due to a complex venous malformation. After excluding a neoplastic and infectious cause, this rare cause of haematuria must be considered in patients presenting with unilateral upper tract haematuria. In this case, the diagnosis was made during adulthood. It was suspected on intravenous urography and confirmed by computed tomography.