title: Prenatal diagnosis of a large epignathus teratoma using two-dimensional and three-dimensional ultrasound: correlation with pathological findings.
abstract: Epignathus teratomas are rare tumors that originate in the region of the palate or pharynx and are known as Rathke pouch. They may be associated with other malformations such as a cleft palate and bifid tongue or nose. The prenatal diagnosis can be established by two-dimensional ultrasonography showing a heterogeneous mass protruding through the mouth of the fetus. The three-dimensional ultrasonography in rendering mode permits better understanding of this anomaly by the parents, facilitating the counseling. The importance of prenatal diagnosis lies in the fact that this tumor may obstruct the airways, thus leading to death at birth due to respiratory insufficiency. We report a case of prenatal diagnosis of epignathus teratoma in the 30th week of pregnancy by two-dimensional ultrasonography. We focus on the importance of three-dimensional ultrasonography in rendering mode for demonstrating the spatial relationships of the tumor with the oral cavity and provide correlations between the ultrasound images and the anatomopathological findings.
authors: Maira Mariko
authors: MM
authors: Takagi
authors: Luiz Claudio Silva
authors: LC
authors: Bussamra
authors: E
authors: E
authors: Araujo Júnior
authors: Carolina Leite
authors: CL
authors: Drummond
authors: Sandra Regina Silva
authors: SR
authors: Herbst
authors: Luciano Marcondes Machado
authors: LM
authors: Nardozza
authors: Antonio Fernandes
authors: AF
authors: Moron
authors: José Mendes
authors: JM
authors: Aldrighi
mesh_terms: D000293:Adolescent; D017809:Fatal Outcome; D005260:Female; D005315:Fetal Diseases / Q000000981:diagnostic imaging*; D006801:Humans; D021621:Imaging, Three-Dimensional; D007231:Infant, Newborn; D009959:Oropharyngeal Neoplasms / Q000000981:diagnostic imaging*; D011379:Prognosis; D013724:Teratoma / Q000000981:diagnostic imaging*; D016216:Ultrasonography, Prenatal / Q000379:methods*
keywords: epignathus teratoma; pathological findings; prenatal diagnosis; three-dimensional ultrasound; two-dimensional ultrasound