https://www.selleckchem.com/products/azd3229.html Ewing sarcoma (ES) is an entity which belongs to a spectrum of neoplastic diseases called the Ewing sarcoma family of tumors (EFT). EFTs of the kidney represent less than 1% of all renal tumors. Herein, we presented a case of primary renal ES with tumor thrombosis up to vena cava who underwent radical nephrectomy and IVC tumor thrombectomy followed by adjuvant chemotherapy. Histopathology showed that the tumor composed of small uniform, dark, round cells arranged in sheets, and rosettoid pattern. The diagnosis of ESFT was confirmed by detecting EWS/FLI-1 fusion gene using reverse transcription polymerase chain reaction (RT-PCR).Inserting Double-j ureteral stent is one of the most popular procedures in urology field. There are different indications for indwelling the stent. For some reasons, it could be neglected for a long time despite its importance. We present a case of 52-year-old patient who had a missed fragment of stent in the urinary bladder for two years with stone formation on one end. We successfully removed the stent and the stone. Such a case is considered rare to deal with during urology practice.Pregnancy presents unique obstacles to diagnosis and management of urologic disease. We present a case of a primigravid female with clot retention requiring evacuation in the operating room due to the avulsion of a bladder mass which prolapsed during labor. Tumor pathology demonstrated a low-grade spindle cell lesion positive for progesterone receptor (PR) and high mobility group A2 (HMGA2), suggestive of deep angiomyxoma versus a benign fibroepithelial polyp or inflammatory myofibroblastic tumor.Renal Cell Carcinoma (RCC) corresponds to 3% of the neoplasms in the adults. Surgery is the main mode of treatment, which can be associated toretroperitoneal lymphadenectomy in the presence of clinically tumor positive lymph nodes. Castleman Disease (CD) is a rare lymphoproliferative disorder, with little-known etiopath