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Breast Cancer (Expert Forum)
CA-125 Blood Test
Questions posted in the Breast Cancer Forum are answered by medical professionals from The Cleveland Clinic. Topics include Breast Biopsy, Chemotherapy, Hormone Therapy, Lumps, Lumpectomy, Lymph node dissection, Lymphedema, Mammograms, Mastectomy, Radiation Therapy, Reconstruction, Self Breast Exam, and Surgery.
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CA-125 Blood Test
by Elinka, Mar 25, 2006 12:00AM
I had this blood test-to check on my ovaries-to see how much estrogen they are still producing even though I had a hysterectomy! I had breast cancer last year and my receptors were both positive for estrogyn and progesterone! I am on Arimidex now! Please explain this blood test further-I THANK YOU!
Doctor's Answer
by CCF-RN,MSN-JS, Mar 27, 2006 12:00AM
Dear Elinka, A CA-125 blood test does not measure estrogen levels. CA-125 is a type of protein present in normal tissue such as the lining of ovaries or the uterus. When normal barriers are destroyed it can enter the circulation. In certain cancers such as uterine or ovarian cancers the level is monitored to evaluate how treatments are working. CA-125 can also be elevated in other cancers such as breast but in smaller percentages.
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