Tumor Marker CA 125: What it Means

What exactly is CA 125? The tumor marker CA 125, short for Cancer Antigen 125, is a so-called monoclonal antibody. Biochemically, it is defined as a glycoprotein – in other words, it is a protein with sugar residues attached. The physician can determine CA 125 from blood plasma, blood serum and cerebrospinal fluid (CSF). Standard … Tumor Marker CA 125: What it Means