Spontaneous rupture of the fornix due to a ureteral lithiasis of 3 mm causing a urinoma: report of an original case.

Rupture of the pyelocalyceal cavities or fornix is a rare and potential urological emergency. It is most often secondary to obstructive uropathy. It can lead to extravasation of urine at the perirenal or retro-peritoneal level, which can have serious consequences. The clinic reported the case of a 37-year-old patient who presented to the emergency department with hyperalgesic (right) renal colic. Intense right lumbar tenderness was found on clinical examination, renal function was preserved. The radiological examination, CT scan mainly, revealed a significant ureteralhydronephrosis by urinary meatus calculus measuring 3 mm with a density of 271 HU and a perirenal effusion and extravasation of the PDC at a late time. The emergency therapeutic management consisted of a bypass with a double J stent. The evolution was marked by a clinico-biological improvement.