<unk>  (carbohydrate antigen<unk> -9 or sialylated Lewis (a) antigen) is a blood test from the tumor marker category. While it is not useful to diagnose particular forms of cancer, specifically pancreatic cancer, it may be useful to monitor the results of treatment and to determine whether the disease may be recurring. Other causes for elevated<unk>  levels include Mirizzi's syndrome and other hepatobiliary diseases. In patients that have the Lewis antigen blood type,<unk>  is not elevated in pancreatic cancer even with large tumors because they have a deficiency of fucosyltransferase that is needed to produce<unk> .
CA 19-9
AFP-L3
MoCA
Carcinoembryonic antigen
Prostate specific antigen
AMACR
PETN
Early prostate cancer antigen-2