POM	Primary obstructive megaureter
HPEBD	High-pressure endoscopic balloon dilation
DJ	Double J
UTI	Urinary tract infection
BAPU	British Association of Paediatric Urologists
MRI	Magnetic resonance imaging
CT	Computed tomography
MRU	Magnetic resonance urography
RUS	Renal ultrasound
DRF	Differential renal function
DTPA	Diethylenetriaminepentaacetate
VCUG	Voiding cystourethrography
SFU	Society of Fetal Urology