title: Congenital nasopharyngeal teratoma (epignathus).
abstract: The case report of a congenital nasopharyngeal teratoma presented as an intra-amniotic sac mass was described. Histologically, the tumor was composed of highly differentiated tissue derived from three germ layers. Those tissues were partially developed as infant organs with a central core made up by bone. Haphazardly arrangement of such tissues with disorganized sketal axis helped in differentiating the mass from an asymmetric twins. The evidence of tumor attachment was seen at the retro-uvular region.
authors.affiliation: Department of Pathology, Faculty of Medicine, Srinakharinwirot University, Bangkok, Thailand.
authors.forename: N
authors.initials: N
authors.lastname: Kaewpila
authors.forename: M
authors.initials: M
authors.lastname: Rochanawutanon
authors.forename: K
authors.initials: K
authors.lastname: Tangcharoenpanich
authors.forename: S
authors.initials: S
authors.lastname: Chansakulporn
mesh_terms: D000328:Adult; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007231:Infant, Newborn; D007235:Infant, Premature, Diseases / Q000175:diagnosis*; D008297:Male; D009303:Nasopharyngeal Neoplasms / Q000151:congenital* / Q000175:diagnosis*; D011247:Pregnancy; D011252:Pregnancy Complications, Neoplastic / Q000175:diagnosis*; D013724:Teratoma / Q000151:congenital* / Q000175:diagnosis*