Prenatal diagnosis and management of fetal pharyngeal teratoma: A case report and review of the literature

Abstract

We present a case of a fetal pharyngeal teratoma, which was diagnosed at 21 weeks' gestation. At the time of examination, a mass of mixed echogenicity was detected that protruded through the mouth. During a second examination 3 weeks later, the tumor had increased in size, and a severe polyhydramnios had developed. Intrauterine death of the fetus was detected at 27 weeks' gestation. Labor was induced with misoprostol, and a 1,015-g stillborn female neonate was delivered. Postmortem examination confirmed the diagnosis of a pharyngeal teratoma.

A newborn with respiratory distress and hydrocephalus caused by a giant mature teratoma

“…CT is advantageous in that it may show osseous complications like erosion of the adjacent skull base, mandible or pterygoid plates, as well as calcifications. Prenatal ultrasonography showing a unilateral and well-demarcated partially solid and cystic, or multiloculated mass with calcifications (50% of cases) and polyhydramnios due to esophageal obstruction (30% of cases) can support the diagnosis of teratoma [1,3,7,13]. Antenatal diagnosis of this neonate was not possible because of inadequate antenatal care.…”

“…About 30% of these cases can be diagnosed by prenatal USG [1,3,7,8,13]. In neonates without antenatal diagnosis, imaging is necessary to define the lesion after delivery.…”

“…These lesions contain all three germ layers and may be composed of mature or immature elements. In the neonate, the presence of immature elements does not correlate with malignant potential, and most of these teratomas are benign [1,3,6,12,13].…”

Epignatus of a Newborn: Postmortem Ct and Mri Imaging for Autopsy

“…Чаще всего тератомы в области носоглот-ки плода выявляются при УЗИ. Имеются дан-ные об успешной ее диагностике на сроке 15-17 недель гестации [44,45], однако в большинстве наблюдений они выявлялись лишь в конце вто-рого или даже в третьем триместре [46]. Следу-ет отметить, что выявление опухолей в третьем триместре беременности некоторые авторы объясняют более поздним их развитием [47].…”

Prenatal diagnosis of a huge foetal immature sacrococcygeal teratoma: our experience of a rare case and review of the literature

“…Teratomas account for 25%-52% of all congenital tumours and have a yearly incidence of one in 20 000 to one in 40 000 live births 3,[4][5][6][7] . Sacrococcygeal teratomas have an incidence of 35 000-40 000 live births and have usually a female predominance [8][9][10] .…”