Patients no longer initially present only at the time of birth, but ar
e often referred by the obstetrician for prenatal counseling. The role
of the surgical consultant is to present information regarding the na
tural history of the prenatally diagnosed anomaly, its surgical manage
ment if required, and the long-term outcome. This is an important and
natural extension of the pediatric urologic practice. Prenatal ultraso
nography has provided the opportunity to evaluate and identify fetuses
with presumed ureteropelvic junction obstruction, and the ability to
appropriately manage the infant postnatally.