IF Finding Striated Spotted Nephrogram Renal Failure Bilateral Renal Artery Stenosis CT Striated NephrogramCT scan in the coronal plane in a 61year old female with bilateral severe renal artery calcific atherosclerosis shows a right kidney that is in excretory phase (contrast noted in the upper pole) with an upper pole parenchyma that is in nephrographic phase and a lower pole demonstrates a striated nephrogram (magnified in the lower panel). The left kidney is non-functioning. Part of a contrast filled bladder is noted in the right lower quadrantAshley Davidoff MD TheCommonVein.net 013Lu 136068c