Spontaneous rupture of the upper urinary tract (fornix) secondary to ureteropelvic junction obstruction: A case report of a rare condition

Spontaneous rupture of the renal fornix (SRF) is a rare condition, usually caused by acute upper urinary tract obstruction, most commonly from kidney stones. Its association with ureteropelvic junction obstruction (UPJO), whether congenital or acquired, is very uncommon. We report a case of a 29-year-old man with fever and right lumbar pain. Imaging showed a fornix rupture without stones, indicating possible UPJO. Emergency drainage with a double-J stent quickly improved his condition, followed by laparoscopic pyeloplasty, leading to full recovery. This case highlights the importance of timely management of UPJO to prevent serious complications like fornix rupture.