Kidney stones causing pain and other discomforts? Get them removed with PCNL Surgery performed at Delhi Urology Hospital, Urology Hospital in Delhi . PCNL, a medical abbreviation for Percutaneous nephrolithotomy, is a surgical medical procedure to remove a kidney or ureteral stones from the body of an individual who cannot pass the stones through urine on their own. In earlier times, large kidney and ureteral stones were taken out from the body through an open surgery, wherein a large flank incision was made. Now, a less-invasive surgery called percutaneous nephrolithotomy is performed. “Percutaneous” means through the skin. Unlike traditional open surgery, PCNL surgery is carried out through a small skin incision (of 1cm size). The procedure involves making a passageway from the skin on the back to the kidney. Through this passageway, the surgeon inserts a thin tube into the back to reach the kidney. Special surgical instruments are passed through this tube to locate and remove kidne