Medically reviewed by Matthew Wosnitzer, MD Key Takeaways Ureteropelvic junction obstruction is a condition where urine flow from the kidney to the bladder is blocked.This blockage is often present at ...

Study Supports Use of SWL for Moderate-Sized Stones Percutaneous nephrostomy is associated with better outcomes than retrograde ureteral stent placement in patients with hydronephrosis secondary to ...