Urinary tract dilatation is commonly identified on antenatal ultrasound. It represents
a wide range of aetiologies including obstructive uropathy. Antenatal diagnosis and
a consistent, evidenced based approach to follow up is essential in reducing neonatal
morbidity and mortality. We present a summary of the current literature and a practical
guide to the management of obstructive uropathy, including the normal sonographic
features of the developing fetal urinary tract, antenatal diagnostic criteria and
the approach to postnatal investigation and management.
Keywords
Obstructive uropathy - Hydronephrosis - Antenatal - Postnatal - Ultrasonography
