A large congenital bladder diverticulum with crossed fused renal ectopia in an 11-year-old boy: A case report from Ethiopia.

Congenital bladder diverticula are rare urological anomalies characterized by herniation of bladder mucosa through muscular fibers of the bladder wall. We report an 11-year-old male from West-Shewa, Ethiopia, presented with obstructive urinary symptoms since early childhood. Abdominal ultrasound revealed a large bladder diverticulum and crossed fused renal ectopia. A voiding cystourethrogram confirmed the diverticulum without vesicoureteral reflux. The patient underwent transvesical diverticulectomy. Subsequent Follow-up showed complete resolution of urinary symptoms, and postoperative ultrasound revealed no upper tract dilatation or residual disease. In conclusion, Congenital bladder diverticula are a rare cause of obstructive urinary symptoms and rarely coexist with renal anomalies.