[Renal pseudoaneurysm--a complication of nephrostomy]

Renal artery aneurysms are rare. These aneurysms have a potential for rupture, resulting in high mortality rates. Percutaneous renal procedures may lead to renovascular injury such as pseudoaneurysms. Regardless of the kidney region, puncture through a fornix of a calyx is relatively safe and only causes injury to an intrarenal vessel in a few percent of the cases. Renal pseudoaneurysm is usually diagnosed by renal angiography or computed tomography. Selective renal embolization is currently considered the most appropriate technique in the treatment for this complication.