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Urinothorax refers to the presence of urine in the pleural space secondary to obstructive uropathy, and is an unusual cause of pleural effusion. The importance of recognising this entity lies in the fact that the condition is completely reversible following relief of urinary tract obstruction. We describe a 35-year-old man who developed urinothorax following a percutaneous nephrolithotomy for renal calculi. We also reviewed the literature for reported cases between 1968 and 2006.


Journal article


Singapore Med J

Publication Date





e289 - e292


Adult, Creatinine, Diagnosis, Differential, Extravasation of Diagnostic and Therapeutic Materials, Fistula, Humans, Kidney Calculi, Kidney Diseases, Male, Nephrostomy, Percutaneous, Pleural Diseases, Pleural Effusion, Postoperative Complications, Radionuclide Imaging, Technetium, Urinary Fistula, Urinoma