Fig. 3
From: Therapeutic experience and key techniques of tubeless percutaneous nephrolithotomy

Representative KUB radiography of a 40-year-old man who underwent tubeless PCNL. The patient had multiple left kidney stones with a maximum diameter of 14 mm and no hydronephrosis. (A). Preoperative. (B). Postoperative. The arrows showed the position of kidney calculus.