Complete extrarenal migration of a double-J ureteral stent following ureteral stone management: A case report

Ureteral stenting is widely used to relieve obstruction, but rare complications such as migration may occur. We report a 60-year-old woman with recurrent nephrolithiasis who presented with pyelonephritis due to a left ureteral stone. After antibiotic therapy and double-J stent placement, she underwent three ESWL sessions. Follow-up CT showed remaining fragments and absence of the upper coil of the stent, suggesting extrarenal migration. Extrarenal displacement was confirmed on the day of ureteroscopy by fluoroscopy. The stent was removed and replaced safely; recovery was uneventful. This case highlights the importance of fluoroscopic control and follow-up imaging to reveal uncommon stent-related complications.