Staghorn stones in renal graft. Presentation on two cases report and review the bibliography.

Objective: To describe two clinical cases of staghorn stones in renal allografts and to perform a review of this condition.

Methods/results: Case 1. 71-year-old woman with a renal transplant and recurrent UTI presented lithiasis in the graft on renal ultrasound.

[Renal cell carcinoma molecular biology. Prognostic and therapeutic usefulness].

Renal cell adenocarcinoma requires different therapeutic pathways because it is one of the most therapy-resistant tumors, on the other hand it is biologically one of the most attractive tumors. Its pathological classification has a genetic base. There is an anomaly of the Von Hippel Lindau gene in 80% of adenocarcinomas, being this fact determinant to know the biological characteristics of tumor initiation and development, as well as the identification of factors susceptible to be used as therapeutic targets.

Impact of renal retransplantation on graft and recipient survival.

Objectives: The aim of this study was to evaluate the influence of retransplantation in graft and recipient survival.

Methods: We carried out a retrospective study in 419 renal transplants and studied the influence of retransplantation in graft and patient survival. A homogeneity study was performed between the two groups with a Student`s T and a chi-square tests.

Association of crossed renal ectopia and aortic aneurism. Case report.

Objective: Renal malformations are rare entities and rarely have clinical consequences. Crossed renal ectopia has an incidence of 1/2.000 autopsies.