Ventana Medical Systems, Inc. Human Chorionic Gonadotropin (hCG) 760-2650

Human chorionic gonadotropin (hCG) is a protein secreted in large quantities by normal trophoblasts; the antibody detects cells and tumors of trophoblastic origin such as choriocarcinoma. Large cell carcinoma and adenocarcinoma of the lung demonstrate hCG positivity in 90% and 60% of cases respectively. 20% of squamous cell lung carcinomas are positive for hCG. hCG expression by non-trophoblastic tumors may indicate aggressive behavior since it has been observed that hCG may play a role in the host response to a given tumor.