title: Chorionic villous-like structures in metastatic testicular choriocarcinoma.
abstract: A case is reported of a 19-year-old man who presented with a mixed germ cell tumor metastatic from the testicle. The predominant component of the lymph node metastases was choriocarcinoma. Chorionic villous-like structures were identified in several areas of choriocarcinoma. To my knowledge, there is no previous report of chorionic villous-like structures in choriocarcinoma in a male patient.
mesh_terms: D000328:Adult; D002822:Choriocarcinoma / Q000556:secondary* / Q000648:ultrastructure; D002824:Chorionic Villi / Q000648:ultrastructure*; D006801:Humans; D007813:Laparotomy; D008197:Lymph Node Excision; D008207:Lymphatic Metastasis; D008297:Male; D012186:Retroperitoneal Neoplasms / Q000556:secondary* / Q000648:ultrastructure; D013736:Testicular Neoplasms / Q000648:ultrastructure