Percutaneous Nephrolithotomy to Remove a Cartridge Detonating Cap Mimicking a Renal Pelvic Stone 12 Years after Renal Trauma

Complications of gunshot injuries of the kidney usually present in the early postoperative period. We describe a case of a cartridge's plastic detonating cap retained in the renal pelvis of a young male patient for 12 years. Renal colic was the cause of admission. This missile's part was mimicking a renal stone on both an intravenous urogram and a CT scan. The nature of the "stone" was identified during a percutaneous nephrolithotomy procedure during which the foreign body was removed.