title: Abnormal seminiferous tubule cells associated with choriocarcinoma: immunoperoxidase study.
abstract: A case is presented of widely metastatic choriocarinoma, associated with an intratubular proliferation of atypical germ cells in the testis and a minute adult cystic teratoma. Immunoperoxidase study of the intratubular germ cells did not confirm their trophoblastic origin. Intratubular proliferation of undifferentiated germ cells may be associated with choriocarcinoma.
mesh_terms: D000328:Adult; D001932:Brain Neoplasms / Q000556:secondary; D002822:Choriocarcinoma / Q000473:pathology / Q000556:secondary*; D006063:Chorionic Gonadotropin / Q000032:analysis; D006801:Humans; D007124:Immunoenzyme Techniques; D008175:Lung Neoplasms / Q000473:pathology / Q000556:secondary; D008297:Male; D012671:Seminiferous Tubules / Q000473:pathology*; D013724:Teratoma / Q000473:pathology*; D013736:Testicular Neoplasms / Q000473:pathology*; D013737:Testis / Q000473:pathology*; D000509:alpha-Fetoproteins / Q000032:analysis
chemical_list: D006063:Chorionic Gonadotropin; D000509:alpha-Fetoproteins