[Neuroectodermic renal tumor. Case report and bibliographic review.].

We report the case of a 16 year old female who underwent left radical nephrectomy for a 13.2 cm neuroectodermic renal tumor and posterior chemo and radiotherapy in the Quiron Hospitals in Madrid and Complejo Hospitalario de Toledo, with a current survival of 14 months. Medical literature was reviewed for the historical, clinical, etiopathogenic, diagnostic, prognostic, therapeutic and survival features.

Evaluation of the significance of radiographic density and size of calculi in the incidence and clinical manifestations of postlithotripsy renal hematomas.

Objectives: The present study is a continuation of an earlier article published on the incidence, clinical manifestations, treatment and risk factors associated with postlithotripsy renal hematomas (1). To assess the possible influence of the size and radiodensity of kidney stones on the incidence and clinical behavior of renal postlithotripsy hematomas.

Methods: Observational prospective study of 324 renal units in the same number of patients undergoing extracorporeal renal lithotripsy.

[Upper urinary tract tumors: our experience].

Objectives: To study the clinical, diagnostic, and therapeutic features of upper urinary tract tumors.

Methods: We perform a retrospective study of upper urinary tract tumors treated in our Department at Clinica La Luz Madrid between 1995 and 2008.

Results: We treated 42 tumors in 40 patients.

[Application of laser technology in the treatment of ureteral lithiasis].

Objectives: To evaluate the contribution of laser, mainly holmium laser, to the endourological treatment of ureteral lithiasis.

Methods: We analyze our experience in 154 endourological treatments of ureteral lithiasis with holmium laser performed in our Unit from June 2005 to December 2007.

Results: Stone fragmentation was achieved in 100% of the cases.

[Renal hematoma after extracorporeal shockwave lithotripsy in a series of 324 consecutive sessions with the DOLI-S lithotripter: incidents, characteristrics, multifactorial analysis and review].

Objectives: The objective is to know the prevalence of renal hematoma after lithotripsy in our unit, as well as the incidence of symptomatic and/or progressive hematomas, their clinical behavior and management, and also the factors potentially influencing those features.

Methods: A prospective study in which we analyzed various parameters from the database on 314 patients undergoing SWL on 324 renal units. SPSS 15.

[Hydraulic dilation (URETEROMAT): effective and safe ureteroscopy].

Objectives: After the description and standardization of the technique of ureteroscopy in 1979, several methods to obtain a nontraumatic, simple, efficient and fast ureteral access have been developed. The hydraulic expansion of the ureter was possible in 1986, with the development of ureteromat. We evaluate the effectiveness of hydraulic ureteral expansion (Ureteromat) for ureteral access and the later endoscopic procedures.

[Recurrent urinary tract infection in a patient with sacral agenesis and vertebral-lumbar dysraphism. Diagnostic-therapeutic scheme and clinical outcome].

Objective: To present and analyze one case of sacral agenesis with distal lumbar vertebral dysraphism, and to highlight the most relevant elements found in a bibliographic search.

Methods: We describe the clinical characteristics of an adult patient with sacral agenesis, the diagnostic-therapeutic urological management and her outcome over four years of follow-up. A bibliographic search was also performed including review of all articles published over the last 16 years; we briefly include the most relevant elements.

[MRI-spectroscopy-guided prostate biopsy].

Prostate cancer is currently one of the main causes of urological practice workload. Patients with negative prostate biopsies may pose serious problems to the urologist in the decision making process for follow-up due to the lack of definitive data in the follow-up algorithm. MRI spectroscopy seems to open a diagnostic window evaluating prostatic metabolic changes.