Obstruction of the neonatal airway from teratomas.

Most neonates with cervical or oral-pharyngeal teratomas have airway obstruction and an obvious mass. In previous reports, obstruction of the airway had caused 49 deaths in 164 newborns with cervical teratomas and five deaths in 24 newborns with oral-pharyngeal teratomas. Most were reported before the era of prenatal ultrasound.