Pyoperitoneum Revealing a Spontaneous Renal Forniceal Rupture Due to Bladder Cancer: A Case Report

Abstract

Extravasation of urine due to a forniceal rupture at the pelviureteric junction is a seldom-seen complication. While the presence of pyonephrosis can lead to a retroperitoneal abscess, its fistulization into the peritoneal cavity is exceptionally rare. Here, we present the case of a 50-year-old man exhibiting clinical signs of peritonitis. An abdominal CT scan indicated retroperitoneal peritonitis due to the rupture of the fornix. This case underscores the uncommon manifestation of pyonephrosis with peritonitis and pyoperitoneum, attributed to bladder cancer.