Hi and welcome to Healthcaremagic. Thank you for your query. I am Dr. Rommstein, I understand your concerns and I will try to help you as much as I can. Well, it depends on the cause since treatment may ionvilve medicamentous or inteventional ones. Pelviectasis is an ultrasound or urogram finding that indicates an anatomic change (dilatation) in the renal pelvis that may be caused by an obstruction below it — like the ureter, or by recurrent infection or inflammation in the area, or even by urine from the bladder refluxing up to the kidney. Hence, it is the cause of the ectasis that should be treated. If stones is causing obstruction then you should just drink plenty of fluids and raspberry tea to promote urination. If you notice fever, blood in urine or pain, you should see urologist and then some invasive procedures may be considered. I hope I have answered you query. If you have any further questions you can contact us in every time. Kindly regards. Wish you a good health.