Prenatal diagnosis of a huge facial tumor: report of a rare case and literature review.

Neonatal tumors are reported to occur in approximately 17-121 per million live births worldwide. They are often diagnosed by ultrasonography after mid-pregnancy. Teratomas are the most frequent solid neoplasms, accounting for between one-quarter and one-third of cases. Here, we describe the prenatal diagnosis of a fetal face teratoma located on the right temporal side at 26 weeks of gestation. Besides 2D and 4D ultrasound imaging, fetal magnetic resonance imaging provides substantial support in perinatal management and promotes the perception of fetal malformations by the family. Extreme intrauterine growth of the tumor with remarkable pressure to the surrounding facial structures and good perinatal prognosis following complete tumoral resection are reviewed.