I am unable to make a specific diagnosis based on the information that you present. The blockage on the right kidney is obviously an area to be examined. I am a nephrologist and have no expertise in blockage of the ureters of the kidney. This is a urological problem and is within the expertise of a urologist. I suggest that you consult with a urologist. A urologist is a surgeon and has expertise with the “plumbing’ of the kidney.