Massive left hemothorax following laparoscopic pyeloplasty.

Laparoscopic pyeloplasty is viable standard minimally invasive alternative to open pyeloplasty for the treatment of ureteropelvic junction obstruction. Intrathoracic bleeding is an extremely rare complication after laparoscopic urological surgery, but it should be suspected and promptly diagnosed in case of worsening hemodynamic status and respiratory parameters during the intra or post-operative course. We report a case of hemothorax complicating an otherwise uneventful LP in an 18-year-old girl.