title: Choriocarcinoma of the stomach.
abstract: A 23-year old woman with primary choriocarcinoma of the stomach presented with abdominal pain and massive hepatomegaly. Serum levels of CEA and serum and urine levels of beta-HCG were markedly elevated. Immunoperoxidase staining for CEA and HCG reveal both to be present in morphologically typical carcinoma cells. This suggests that serum beta-HCG may be a useful tumor marker of gastric carcinoma.
mesh_terms: D000328:Adult; D002272:Carcinoembryonic Antigen / Q000032:analysis; D002822:Choriocarcinoma / Q000032:analysis / Q000473:pathology*; D006063:Chorionic Gonadotropin / Q000032:analysis*; D005260:Female; D006529:Hepatomegaly / Q000150:complications; D006801:Humans; D007124:Immunoenzyme Techniques; D011247:Pregnancy; D013274:Stomach Neoplasms / Q000032:analysis / Q000473:pathology*
chemical_list: D002272:Carcinoembryonic Antigen; D006063:Chorionic Gonadotropin