Medline: 6208522

Obstetrics and Gynecology 64(5): 703-707, 1984.

CA125 antigen levels in obstetric and gynecologic patients.

Niloff JM, Knapp RC, Schaetzl E, et al.


An immunoradiometric assay using a monoclonal antibody detects an antigenic determinant (CA125) that is present in more than 80% of epithelial ovarian cancers. CA125 levels are elevated in the sera of 16% of women in the first trimester of pregnancy and is found in very high concentration in amniotic fluid. In 988 nonpregnant patients with benign gynecologic disorders, CA125 was greater than 65 U/mL in 1% on a single determination and in 0.5% with two determinations. Given the low rate of positivity in benign gynecologic disease, the CA125 assay may deserve further evaluation for the early detection of ovarian carcinoma.

This is a service of:

Uni Logo

Rheinische Friedrich- Wilhelms- Universität Bonn
Medical Center

Dr. G. Quade