| Summary: | Urinomas are formed when urine leaks outside its normal pathway of flow from the kidney to the urethra. In most cases it is found in the retroperitoneal space, around the perinephric region. Urinomas are formed secondary to obstruction (such as calculi, fibrosis, malignancy, etc.), or from trauma (blunt, penetrating or iatrogenic). Subcutaneous urinomas are extremely rare and to the best of our knowledge only two cases have been documented, both of which have resulted from renal trauma, secondary to renal transplantation and ureterocutaneostomy. We present the first and only known case of subcutaneous urinoma occurring as a sequelae to percutaneous nephrolithotomy (PCNL) with computed tomography (CT) correlation.
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