I am 57, stage II PKD, my right kidney is 13cm in length but the left is now 16.5 (grown 3 cm in 2 years) prior to that in a 2 year period there was no growth at all, I have read that when kidneys reach 17cm the approx volume is about 700 (they did not measure volume in my scans). While the left kidney grew from the burden of cysts the right did not grow at all, should it be expected that the right kidney will soon grow to match the other or do they just adjust randomly over time depending on the cyst growth. I have also read that once the volume reaches 700 it is expected that stage III will be reached with 8 years, is this true when one kidney reaches that stage or does it apply only when both reach that size. My GFR is in the low 80's and has been stable since my diagnosis 4 years ago. I have been on Jinarc for 3 years.