Congenital laryngeal cysts were described first by Abercrombie in 18811 and present a life-threatening condition which can compromise the upper airway. Congenital laryngeal cysts are rare with an incidence of 1.82 per 100 000 live births,2 and urgent surgical intervention is considered the mainstay intervention.3 A 3-day-old term baby had been referred to our service with mild intermittent inspiratory stridor and a hoarse cry that had been present since birth. No significant family history was noted. The baby did not require respiratory support, was not desaturating on room air, and had established breastfeeding. Prenatally, fetal ultrasound scans detected both renal and hepatic cystic lesions.