Unrecognised urinoma caused by infiltrative bladder cancer

. Urinoma develops after disruption of collecting system of urinary tract and urine leak in surrounding tissue. Most common causes of urinoma are blunt or penetrating trauma. Less common causes are iatrogenic injuries or urinary tract obstruction. In this article authors present a rare case of the urinoma caused by infiltrative bladder cancer. Case report. Acutely ill, septic patient with ileus and profound azothaemia was admitted to medical intensive care unit. Native computerized tomography revealed moderate ileus, right kidney hydronephrosis, extensive retroperitoneal urinoma and vesical thickening with ureteral orifices’ infiltration. Computerized tomography guided percutaneous drainage was done. Upon stabilization, patient underwent transurethral bladder tumor electro resection (pathology report: infiltrative transitional cell tumor of urinary bladder). Radical cystectomy was done. Patient’s recovery was uneventful. Conclusion. Urinoma formed due to spontaneous rupture of collecting system based on ureteral obstruction caused by urinary bladder tumor is very rare clinical case scenario. In case of urinoma of unclear etiology invasive bladder cancer should be in mind.