MUC16 and cervical cancer: Squamous cell carcinoma antigen (SCC-Ag),16 cancer antigen 125 (CA-125),17 cancer antigen 19-9 (CA19-9),18 and cytokeratin 19 fragment antigen 21-1 (CYFRA 21-1)19,20 are clinically available tumor markers for the diagnosis and prognosis of cervical cancer.