These images are from a 6 year old British Short Hair cat. Creatinine prior to dental work was 6.0. Urine sg was isosthenuric and a culture was negative. Both kidneys show the same findings. The blood flow seemed to be diminished on color flow. I made a tentaive diagnosis of renal dysplasia since infection and neoplasia seem to be ruled out. What do other people think? The ureters were not visible and I did not see any uteroliths.