title: Primary duodenal choriocarcinoma.
abstract: We report a case of nongestational extragenital choriocarcinoma arising in the duodenum of a 29-year-old woman. Immunohistochemical stains of the tumor were positive for human chorionic gonadotropin and human placental lactogen.
mesh_terms: D000328:Adult; D002822:Choriocarcinoma / Q000378:metabolism / Q000473:pathology*; D006063:Chorionic Gonadotropin / Q000378:metabolism; D004379:Duodenal Neoplasms / Q000378:metabolism / Q000473:pathology*; D005260:Female; D006729:Hormones, Ectopic / Q000378:metabolism; D006801:Humans; D007124:Immunoenzyme Techniques; D010928:Placental Lactogen / Q000378:metabolism; D011247:Pregnancy
chemical_list: D006063:Chorionic Gonadotropin; D006729:Hormones, Ectopic; D010928:Placental Lactogen