CA-125 is a type of biomarker or a substance in your blood that may be a sign of a condition or disease. A high level of CA-125 can be a sign of ovarian cancer.

CA 125 (cancer antigen 125) is a sugar-associated protein (glycoprotein) in the blood that is considered a biomarker (or “tumor marker”) because it is found in greater concentrations in ovarian cancer cells. Doctors test the blood for CA 125 to help diagnose ovarian cancer.

Mar 7, 2025 · A CA 125 test measures the amount of cancer antigen 125 in the blood. For a CA 125 test, a member of your healthcare team takes a sample of blood by inserting a needle into a vein, usually in the hand or arm.

CA 125 is specific for ovarian cancers; It is an accurate marker for non-mucinous epithelial tumors of the ovary. A second laparotomy will detect a tumor in 97 % of the patients with a CA-125 level of more than 3500 units/mL.

Nov 15, 2021 · The CA-125 blood test is used in ovarian cancer diagnosis and monitoring. Learn the normal range of cancer antigen 125, what is high and what causes fluctuations.

May 2, 2024 · Cancer antigen 125 (CA125) is an antigenic tumor marker expressed by epithelial ovarian neoplasms and cells lining various organs such as the endometrium, fallopian tubes, pleura, peritoneum, and pericardium.

Cancer antigen 125 (CA 125) is the only tumor marker recommended for clinical use in the diagnosis and management of ovarian cancer. The reference range of CA 125 is 0-35 units/mL (0-35...

Oct 22, 2021 · The CA-125 blood test measures the amount of a specific protein called cancer antigen 125, or CA-125, in a person’s blood. Elevated CA-125 levels can suggest ovarian cancer, but they can also be caused by many benign conditions.

Mar 4, 2025 · Cancer Antigen 125 (CA 125) is a protein found in the blood, often used as a biomarker for detecting ovarian cancer and other medical conditions. While elevated CA 125 levels may indicate the presence of cancer, they can also rise due to non-cancerous conditions like endometriosis, pregnancy, or infections.

How will you define CA 125? What is the response of CA 125 to treatment? What are the causes of increased CA 125 value in malignant conditions? What are the Benign conditions where CA 125 is positive?