Case of PUJ stenosis Rt side, Rt moderate hydronephrosis with reduction of renal parenchymal thickness 7mm & 1.4cm stone in lower calyx of Rt kidney.?

Here are some ... Apparently, the condition of your right kidney has been chronic, most likely, inborn. From what you described, this kidney may be still salvageable by surgery – either open or laparoscopy with or without robotic assistance. I'm sure, before the procedure, a renal nuclear scan can be done to define the residual function of right kidney. For more detail, ask and talk with your doctor. Best wish.