Crossed fused renal ectopia: Challenges in diagnosis and management
A 10-year-old boy had previously undergone staged treatment for anorectal malformation. During this treatment, ultrasonography revealed an empty left renal fossa with a crossed left renal ectopia fused to the right kidney. Both kidneys were normal. He now presented with recurrent urinary tract infection for the past one year. The imaging modalities used for investigation included ultrasonography, intravenous pyelography [], radionuclide cortical and renal dynamic scan, and micturating cystourethrogram. The left crossed fused renal ectopia was confirmed and he was diagnosed to have left-sided grade II vesicoureteral reflux with a paraureteral diverticulum. Both kidneys were normal. He underwent left-sided cross trigonal (Cohen's) ureteric reimplantation. Postoperatively, he remained asymptomatic.