Retrocaval ureter: a rare cause of hydronephrosis in children

Area of Science:

• Urology
• Pediatric Surgery
• Developmental Biology

Background:

• Retrocaval ureter is a rare congenital anomaly involving the inferior vena cava, typically presenting in adulthood.
• Pediatric cases are exceptionally uncommon, making diagnosis and management challenging.
• Symptomatic presentation is usually due to ureteric obstruction, necessitating surgical intervention.

Observation:

• A pediatric patient presented with flank pain and right hydronephrosis.
• Surgical evaluation revealed an undiagnosed retrocaval ureter anomaly.
• The anomaly involved the right ureter being obstructed by its passage behind the inferior vena cava.

Findings:

• Surgical correction involved dividing the ureter and re-anastomosing it anterior to the inferior vena cava.
• The procedure successfully relieved the ureteric obstruction and addressed the hydronephrosis.
• Histopathological examination confirmed the developmental nature of the anomaly.

Implications:

• This case underscores the importance of considering rare congenital anomalies in pediatric patients with unexplained urinary tract obstruction.
• Successful surgical management in childhood can prevent long-term renal damage and complications.
• Further research into the embryological origins of retrocaval ureter may improve diagnostic and therapeutic strategies.