An unusual complication of urinary stone disease: Spontaneous ureteral rupture.

Spontaneous ureter rupture (SUR) is a rare condition that can present mimicking many acute abdominal diseases. There is no probable explanation of the theoretical mechanism of spontaneous ureter rupture in the literature. Mostly calculus can cause spontaneous ureter rupture with ureteral obstruction. If left untreated, it can lead to life-threatening complications. Herein we report a case of SUR that was occurred due to urinary stone disease in a male patient who presented with abdominal pain. A non-contrast enhanced and a late phase contrast-enhanced abdominal computed tomography (CT) demonstrated the urinary stone disease and contrast extralumination from the proximal part of the left ureter. We also aimed to emphasize the clinical and CT imaging findings of SUR.