Fig. 7From: Complications of renal interventions: a pictorial review of CT findingsUnenhanced CT image of migration of renal calculi (white arrows) into the left percutaneous nephrolithotomy tract and a small left perinephric urinoma post-PCNL of a left staghorn calculus. There is a inferior migration of the ureteric calculus within the left proximal ureter (yellow arrow). A right-sided ureteric stent is in situ (red arrow)Back to article page