Two cases of recurrent macroscopic hematuria in which the diagnosis of left renal vein varices has suggested on CT are described. Bloody efflux was seen from the left ureteric orifice. On CT scans, tubulated contrast-enhanced densities in left perineal fat were seen. Selective renal angiography was normal. Selective left renal phlebography demonstrated intra and perirenal varices. In the two cases, embolization with metallic coli was successfully performed during left renal phlebography, to stop renal varices flux. Diagnostic and therapeutic modalities of renal varices are discussed with predominant place for CT and phlebography.