Embolization of renal artery aneurysm and arteriovenous fistula-a case report.

A renal artery aneurysm with an associated arteriovenous fistula in a native kidney has been reported infrequently in the literature. Management depends on size, location, and the patient's physiological condition. We describe a case in which endovascular therapy was used to successfully exclude both aneurysm and fistula.

Nerve-sparing during robotic radical prostatectomy: use of computer modeling and anatomic data to establish critical steps and maneuvers.

This paper is aimed at focusing on the nerve-sparing aspect of the robotic prostatectomy. It reviews the existing principles and presents the arguments based on robotic fresh cadaver dissections and from actual robotic prostatectomy cases.

Normal ureter size on unenhanced helical CT.

Objective: Unenhanced helical CT is the imaging method of choice when evaluating patients with acute flank pain and suspected ureterolithiasis. In addition to directly identifying stones in the lumen of the ureter, CT secondary signs of obstruction such as ureteral dilatation are frequently present and can be helpful in establishing a diagnosis. The purposes of this study were to define ureteral dilatation on unenhanced helical CT and determine the range of normal ureter size.