[A case of a large neonatal pharyngeal teratoma].

The congenital teratoma is a rare malformation. We present herein on the case of a large teratoma that arose from the epipharynx in a neonate. The obstructive mass caused maternal polyhydramnios and was identified prenatally by ultrasonography at another hospital. The mother was transferred to our hospital for delivery. We explained about the ex utero intrapartum treatment (EXIT) because of the risk of airway obstruction at birth, but EXIT was refused by the parents. Delivery was accomplished by cesarean section at the 35 th week. Since the newborn had a severe respiratory disorder due to a large intraoral tumor and intratracheal intubation was very difficult, a tracheostomy was done under local anesthesia for 7 min. The tumor was removed successfully on the 9th day and 44th day of age.