ABSTRACT
Posterior urethra obstruction continues to be a significant cause of morbidity, mortality, and ongoing disability in the pediatric age group. Boys with obstructive uropathy and dysplasia represent the single largest group of children undergoing renal dialysis and transplantation under 5 years of age. End-stage renal disease develops in a significant proportion (30-42%).1-4 Even with this clinical significance, and the fact that the condition has been recognized for well over 150 years, our understanding of the embryology, developmental anatomy, and treatment remains limited.
