[Bladder sarcomatoid carcinoma: report of a case]. / Carcinoma sarcomatoide vesical: a propósito de un caso.

A case of sarcomatoid carcinoma of the bladder is described. Its interest basically stems from the fact that this extremely aggressive tumor is uncommon in the bladder and there is existing controversy as to its anatomopathological distinction from other carcinosarcomas, spindle cell sarcoma and pseudosarcomatous bladder lesions.

[Renal transplant and cutaneous ureteroileostomy. Report of 2 cases]. / Trasplante renal y ureteroileostomía cutánea. A propósito de dos casos.

Congenital or acquired pathology of the lower urinary tract currently does not preclude renal transplantation in patients with end-stage nephropathy. We report two cases of renal transplantation with ureteroileal cutaneous diversion in patients with a nonfunctional lower urinary tract due to bladder fibrosis secondary to urinary tuberculosis. We discuss the possibilities of the urodynamic study in the preoperative evaluation of patients with similar conditions.

[Treatment with ESWL of lithiasis in the transplanted kidney]. / Tratamiento mediante ESWL de la litiasis en el riñón trasplantado.

Report on one case of lithiasis in a transplanted kidney treated successfully with extracorporeal shockwave lithotrity. This is considered to be the choice therapeutical method when there are no bone interposition or urinary tract obstruction which may preclude the correct removal of lithiasis fragments.

[Percutaneous nephrolithotomy after extracorporeal lithotripsy for the treatment of complex renal lithiasis. Technical details and results]. / Nefrolitotomía percutánea tras litotricia extracorpórea en el tratamiento de la litiasis renal compleja. Detalles de técnica y resultados.

The new therapeutic approach combining percutaneous nephrolithotomy (PNL) and extracorporeal shock wave lithotripsy (ESWL) has become widely used instead of conventional surgery. The use of this combined treatment modality has been extended to complex renal calculi. In our view, the need to achieve complete removal of struvite stone fragments to cure infection and prevent subsequent stone formation has led to a change in our therapeutic approach. The present study describes several maneuvers to facilitate PNL and compares two treatment modalities: PNL to reduce stone volume + ESWL (an approach utilized by many) and ESWL + PNL for remaining stone fragments (our therapeutic approach). Our approach (ESWL followed by PNL) has enhanced our results in the treatment of complex renal calculi: 68.4% of the renal units were completely stone-free at the time of discharge from the hospital. Good results were achieved in 89.5%, if we include the renal units with stone fragments that could be spontaneously passed.