A Comparison of the Alken Metallic Telescopic Dilator and Amplatz Serial Dilator for Renal Access in Percutaneous Nephrolithotomy.

Background: Access to the renal calyx is a challenging and crucial step for a successful percutaneous nephrolithotomy (PCNL). There are different methods of access tract dilatation, and there is no consensus on which method is the best. We conducted a comparative retrospective study on the safety and efficacy of the Alken metallic dilator and Amplatz dilator for renal access in PCNL.

Primary Urothelial Carcinoma of the Prostate: A Rare Disease With Treatment Dilemma.

Primary urothelial carcinoma of the prostate (UCP) is extremely rare. The exact pathogenesis of this disease is not known. Currently, there is no consensus regarding the optimal treatment.