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Testing of CA-125 blood levels has been proposed as useful in treating ovarian cancer. While the test can give useful information for women already known to have ovarian cancer, CA-125 testing has not been found useful as a screening method because of the uncertain correlation between CA-125 levels and cancer. [19]
No screening test is wholly specific, and a high level of tumor marker can still be found in benign tumors. The only tumor marker currently used in screening is PSA (prostate-specific antigen). Diagnostics; Tumor markers alone can't be used for diagnostic purposes, due to lack of sensitivity and specificity. [5]
A positive test for inhibin A and inhibin B can indicate a granulosa cell tumor. [31] A blood test for a marker molecule called CA-125 is useful in differential diagnosis and in follow up of the disease, but it by itself has not been shown to be an effective method to screen for early-stage ovarian cancer due to its unacceptable low sensitivity ...
Not all cancer biomarkers have to be specific to types of cancer. Some biomarkers found in the circulatory system can be used to determine an abnormal growth of cells present in the body. All these types of biomarkers can be identified through diagnostic blood tests, which is one of the main reasons to get regularly health tested.
The tumor marker CA-125 is frequently elevated in endometrial cancer and can be used to monitor response to treatment, particularly in serous cell cancer or advanced disease. [ 32 ] [ 44 ] [ 82 ] Periodic MRIs or CT scans may be recommended in advanced disease and women with a history of endometrial cancer should receive more frequent pelvic ...
Consequently, CEA is usually present at very low levels in the blood of healthy adults (about 2–4 ng/mL). [2] However, the serum levels are raised in some types of cancer, which means that it can be used as a tumor marker in clinical tests. Serum levels can also be elevated in heavy smokers. [3]