Bilateral pelvi-ureteric junction obstruction in a neonate presenting with sudden anuria

We report an extremely rare case of a female neonate with antenatally diagnosed bilateral moderate hydronephrosis and appropriate postnatal follow up who presented at 6 weeks of life with sudden onset of anuria secondary to bilateral pelvi-ureteric junction obstructions. While most antenatally diagnosed hydronephrosis remains asymptomatic, this case serves as a reminder that neonatal patients can become acutely symptomatic.