Immature orbital teratoma: A rare case diagnosed in utero - A clinicopathological case report

Abstract

To report a rare case of orbital teratoma diagnosed in utero by ultrasound examination at 24 + 4 weeks of gestation. The fetus was delivered by cesarean section, by terminative medical indication, at 39 weeks of pregnancy, due to the possibility of dystocia caused by the size of the tumoral mass, or the risk of tumor rupture during vaginal delivery, with risk to fetal survival. The neonate, a 3 day-old female patient was examined in our Department with a large tumoral mass in the right orbit, severe proptosis, producing severe disfigurement. The diagnosis of orbital teratoma was confirmed by clinical, image, and histopathological exams. To the authors best knowledge this is the first case of orbital teratoma in Brazilian literature reporting a case where the diagnosis was made in utero, at 24 + 4 weeks of gestation.

Keywords

• fetal proptosis
• immature teratoma
• orbital cystic tumor
• orbital neoplasms
• orbital teratoma
• prenatal ultrasonography
• teratoma