Fig. 1From: Embedded upper end of double J stent at the site of renal pelvis injury following percutaneous nephrolithotomy: a rare complicationImaging of the first case. a, Pre-operative plain x-ray with partial staghorn calculus; b, Retrograde pyelography showing the loop of the JJ stent outside the collecting system and the narrow renal pelvis; c, CT scan showing the upper coil of the JJ stentBack to article page