title: Submandibular endodermal sinus (yolk sac) tumor in a female infant. A case report.
abstract: A submandibular endodermal sinus (yolk sac) tumor (EST-YST) is reported. The patient was a 1.5-year-old girl exhibiting a rapidly growing tumor in the submandibular region. The lesion showed the typical microscopic features including Schiller-Duval bodies and colloid bodies. Alpha-fetoprotein immunoreactivity was expressed by most tumor cells. There was no clinical or radiological evidence of the presence of this tumor elsewhere in the body.
authors.affiliation: Servico de Patologia Morfológica, Instituto Portugu s de Oncologia de Francisco Gentil, Lisbon.
authors.forename: I
authors.initials: I
authors.lastname: Fonseca
authors.forename: A G
authors.initials: AG
authors.lastname: Martins
authors.forename: J
authors.initials: J
authors.lastname: Soares
mesh_terms: D001485:Basement Membrane / Q000648:ultrastructure; D003593:Cytoplasm / Q000648:ultrastructure; D005260:Female; D005355:Fibrosis; D006258:Head and Neck Neoplasms / Q000473:pathology; D006801:Humans; D006818:Hyalin; D002479:Inclusion Bodies / Q000648:ultrastructure; D007223:Infant; D008649:Mesonephroma / Q000473:pathology; D009336:Necrosis; D000509:alpha-Fetoproteins / Q000032:analysis
chemical_list: D000509:alpha-Fetoproteins