Bilateral intramural ectopic ureters, ureteroureteral fenestration, hydroureters, renal dysplasia and a unilateral ureterocele in a young Golden Retriever

Abstract A 4‐month‐old, intact female, Golden Retriever presented with lifelong urinary incontinence. Initial diagnostics revealed mild leukocytosis, regenerative anaemia, mild azotemia and bacteriuria with Escherichia coli. Abdominal computed tomography identified bilateral intramural ectopic ureters (EUs) with severe hydroureters, bilateral renal dysplasia and a right ureterocele. Cystoscopy and fluoroscopy confirmed EUs and identified a ureteroureteral fenestration with the right ureteral orifice opening within the intramural tunnel of the left ureter. The right ureter continued distally beyond the ureteroureteral fenestration, ending in a blind pouch at the urethral meatus; a paramesonephric remnant was also noted in the vestibule. Laser ablation was performed on both EUs, the right ureterocele and the remnant tissue. At 6‐week follow‐up, the patient had complete clinical resolution of urinary incontinence and right ureterocele, sonographically. This case highlights the importance of advanced imaging and minimally invasive intervention in the diagnosis and successful management of multiple congenital urogenital anomalies.