Calyceal rupture and perirenal urinoma as a presenting sign of recurrent ovarian cancer

Background. Rupture of the urinary collecting system with peripelvic extrav asation of urine is an uncommon pathologic condition usually associated wit h ureteral obstruction from calculi. Case. We report a patient with calycea l rupture and peripelvic extravasation of urine secondary to distal uretera l obstruction by recurrent ovarian carcinoma. Diagnosis was established wit h computed tomography and renal scans. Placement of an indwelling ureteral stent via a nephrostomy resolved the urinoma. Conclusion. Gynecologic oncol ogists should be aware that calyceal rupture is a potential complication of gynecologic malignancy. Causes of perirenal urinary extravasation and appr oaches to diagnosis and management are reviewed. (C) 2001 Academic Press.