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Objective: To investigate the effect of the presence of severe hydronephrosis on percutaneous nephrolithotomy (PNL) outcome in patients who underwent PNL operation with one-shot dilatation technique.Materials and methods: Medical data of 989 patients underwent PNL operation in our clinic between 2012 and 2018 were retrospectively reviewed. We included 373 of the patients underwent PNL operation due to renal pelvic stone, who were older than 18 years of age, who did not have any urinary tract abnormality, and had no previous history of open renal stone operation. Patients were divided into two groups according to the presence of severe hydronephrosis and absence of hydronephrosis. These two groups were compared in terms of age, gender, body mass index (BMI), number of stones, stone burden, operation duration, fluoroscopy time, hospitalization time, hemoglobin and creatinine change, complications, and stone free rate.Results: There was no statistically significant difference between the groups in terms of age, gender, BMI, stone number, stone size, stone density, operation duration, fluoroscopy time, and hospitalization duration. The mean change in hemoglobin was 1.5 g/dL in group 1 and 1.1 g/dL in group 2. This difference was statistically significant (p= 0.006). Postoperative blood transfusion was required for 3 patients (2.1%) in group 1 and 12 patients (5.1%) in group 2. This difference was statistically significant (p< 0.001).Conclusion: Only the presence of severe hydronephrosis was found to be associated with the change in hemoglobin and postoperative blood transfusion.

Introduction: Renal artery pseudoaneurysm is a well-described complication of open and laparoscopic partial nephrectomy. Delayed bleeding from a renal artery pseudoaneurysm is rare after open partial nephrectomy.Case description: Here, we present a 75-year-old man who, 14 days after undergoing an open right partial nephrectomy for an endophytic 4.5 cm tumor, developed painless macroscopic hematuria. Prompt computer tomography angiography imaging, followed by therapeutic angio-embolization of segmental renal artery with coils, treated the pseudoaneurysm successfully.Conclusion: Renal artery pseudoaneurysm can be treated rapidly, effectively, and with minimal patient morbidity via percutaneous renal artery embolization.

Introduction: Primary carcinomas of the urethra differ by location and histologic subtype. Primary urethral cancer of the proximal urethra is rare and aggressive tumor with a high propensity for regional and distant metastases.Case description: In this case report, we present primary urothelial carcinoma of the prostatic urethra, diagnosed by transrectal ultrasound-guided biopsy of the prostate and having multiple metastases at the time of diagnosis. Metastatic patients were initiated chemotherapy according to the histological type of urethral cancer.Conclusion: Urothelial carcinomas of the urethra are rarely seen, and therefore there is no standard treatment regimen for early-stage or metastatic disease. Gemcitabine-, platinum-, and taxane-based treatments are used in the metastatic stage.