title: Primary extratesticular choriocarcinoma: a case report.
mesh_terms: D000328:Adult; D002822:Choriocarcinoma / Q000175:diagnosis*; D006063:Chorionic Gonadotropin / Q000097:blood; D018997:Chorionic Gonadotropin, beta Subunit, Human; D006801:Humans; D008113:Liver Neoplasms / Q000175:diagnosis*; D008297:Male; D009378:Neoplasms, Multiple Primary / Q000175:diagnosis*; D010446:Peptide Fragments / Q000097:blood; D012186:Retroperitoneal Neoplasms / Q000175:diagnosis*
chemical_list: D006063:Chorionic Gonadotropin; D018997:Chorionic Gonadotropin, beta Subunit, Human; D010446:Peptide Fragments