50 years old man suffering from primary lung adenocarcinoma presented with
high levels of both beta subunit human chorionic gonadotropin (beta HCG) an
d cancer antigen 15-3 (CA 15-3) in the absence of elevated carcinoembrionic
antigen (CEA), alfa fetoprotein (AFP) and carbohydrate antigen 19-9 (CA 19
-9). Although beta HCG or CA 15-3 high levels were reported in adenocarcino
ma of lung, this is the first report of a patient with high levels of both
markers.