Kutluhan, A.Ugraş, S.Akman, E.2025-05-102025-05-1019980385-814610.1016/S0385-8146(98)00013-32-s2.0-0032402943https://doi.org/10.1016/S0385-8146(98)00013-3https://hdl.handle.net/20.500.14720/6283Endodermal sinus tumor is a malignant germ cell tumor which usually arises in gonads. Extragonadal endodermal sinus tumors in the head and neck are very rare. Here a gingival endodermal sinus tumor is reported. The lesion demonstrated typical microscopic features of the endodermal sinus tumors of gonads. The tumor cells showed α-fetoprotein immunoreactivity in immunohistochemical evaluation. The serum α-fetoprotein level was high. This is the first gingival case in the related literature.eninfo:eu-repo/semantics/closedAccessEndodermal SinusGingivaOral CavityTumorYolk SacArticle254Q3Q24594629853671