ABSTRACT
A 2-week-old baby was referred to the prolonged jaundice clinic by the community midwife. The pregnancy was unremarkable, and she was born at term with no antenatal abnormalities on ultrasound (US) scans or blood serology. She is now 17 days old and has been jaundiced since day 5 of life and never required phototherapy. She is breastfed and feeds 3-hourly for 20-25 minutes. She is afebrile and not lethargic. Her mother reports that the stools are pale and she has dark coloured urine. The bilirubin is 300 μmol/L, and conjugated bilirubin 100 μmol/L. What is the most important diagnosis to exclude?
