
Kidney Stones and Urinary Tract Reconstruction
Interventional radiology can be used to help with kidney stones and reconstruction of the urinary tract.
Percutaneous Nephrostomy Tube
A percutaneous nephrostomy tube is a tube placed through the back into the kidney. A drainage tube collects urine from the kidney and exits the back. This is typically connected to a bag which drains urine from the kidney. A percutaneous nephrostomy tube may be placed in preparation for a kidney stone surgery called percutaneous nephrolithotripsy (PCNL).
A percutaneous nephrostomy tube may also be placed in preparation for surgery of the kidney tube (ureter). This includes
- Ureteropelvic junction obstruction (UPJ obstruction) in preparation for reconstructive surgery called pyeloplasty
- Narrowing or stricture of the kidney tube (ureter) in preparation for reconstructive surgery
- Kidney swelling (hydronephrosis) due to tumor in preparation for further surgery or chemotherapy of the urinary tract
Nephroureteral Stent
A nephroureteral stent is a plastic tube that travels from the bladder, up through the kidney tube (ureter) through the kidney and out the back. This is typically placed to a drainage bag to collect the urine. A nephroureteral stent is typically placed in preparation for upcoming surgery along with urinary tract.
Suprapubic Tube
A suprapubic tube is a plastic tube placed in the bladder that exits out the belly wall. This is placed to a drainage bag to collect the urine. This is placed when there is a narrowing or blockage of the normal urinary pathway (urethra).


