Editing Human chorionic gonadotropin (section)

===Tumor marker===
Human chorionic gonadotropin can be used as a [[tumor marker]],<ref>{{cite web|title=Tumor Markers Found in Blood or Urine|url=http://www.cancer.org/treatment/understandingyourdiagnosis/examsandtestdescriptions/tumormarkers/tumor-markers-t-m-blood-urine|publisher=American Cancer Society|access-date=21 January 2014|archive-date=6 March 2014|archive-url=https://web.archive.org/web/20140306072557/http://www.cancer.org/treatment/understandingyourdiagnosis/examsandtestdescriptions/tumormarkers/tumor-markers-t-m-blood-urine|url-status=dead}}</ref> as its β subunit is secreted by some [[cancer]]s including [[seminoma]], [[choriocarcinoma]], [[teratoma]] with elements of [[choriocarcinoma]], other [[germ cell tumor]]s, [[hydatidiform mole]], and [[islet cell tumor]]. For this reason, a positive result in males can be a test for [[testicular cancer]]. The normal range for men is between 0-5 mIU/mL. Combined with [[alpha-fetoprotein]], β-HCG is an excellent tumor marker for the monitoring of [[germ cell tumor]]s.<ref>{{Cite web|date=2010-06-07|title=Tumor Markers for Testicular Cancer and Extragonadal Germ Cell Tumors in Teenage Boys and Men|url=https://www.cancer.net/research-and-advocacy/asco-care-and-treatment-recommendations-patients/tumor-markers-testicular-cancer-and-extragonadal-germ-cell-tumors-teenage-boys-and-men|access-date=2021-02-16|website=Cancer.Net|language=en|archive-date=2021-03-03|archive-url=https://web.archive.org/web/20210303091015/https://www.cancer.net/research-and-advocacy/asco-care-and-treatment-recommendations-patients/tumor-markers-testicular-cancer-and-extragonadal-germ-cell-tumors-teenage-boys-and-men|url-status=dead}}</ref> <!-- it would be helpful to have somewhere a complete list of tumors (by histology) that secrete βHCG. -->