Figure 3.

(A) Computed tomography obtained 12 hours after percutaneous nephrostomy catheter placement showing a subacute subcapsular renal hematoma (arrows).(B) Different patient than (A), demonstrating a nephrostomy catheter placed in Gerota's fascia utilizing direct trocar technique. The catheter lies outside of the renal collecting system. (C) Different patient than (A) and (B), with nephrostomy catheter placed in an extrarenal or intraparenchymal location utilizing direct trocar technique. Contrast still opacifies the collecting system, containing intraluminal clot, despite catheter position.