Can CA125 be high without cancer?

If your CA 125 level is higher than normal, you may have a benign condition, or the test result could mean that you have ovarian, endometrial, peritoneal or fallopian tube cancer. Your doctor may recommend other tests and procedures to determine your diagnosis.

Can CA125 be raised without cancer?

CA125 is produced by some ovarian cancer cells. A high level of CA125 in your blood could be a sign of ovarian cancer. But a raised CA125 level does not mean you definitely have cancer, as it can also be caused by other conditions such as endometriosis, fibroids and even pregnancy.

Can a CA125 test be wrong?

A high level of CA-125 can be a sign of cancer, particularly ovarian cancer. However, the test can have both false positive and false negative findings. CA-125 levels can be normal even if a person has cancer, or they can be elevated in a patient who does not have cancer.

What level of CA125 indicates cancer?

The normal range for CA 125 is 0 to 35 units/ml. While a CA 125 level over 35 may indicate cancer, it does not always mean the person has cancer.

CA 125 Levels Chart.

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CA 125 Levels (units/mL) Potential Cancer
>35 (high) Possible cancer. More tests will be needed for a diagnosis.

What can cause a false positive CA125?

False positive results were largely caused by another malignancy (48 cases; 26%), benign ovarian disease (26 cases; 14%), and benign gynaecological conditions, particularly leiomyomas (18 cases; 9%). The specificity of CA125 for ovarian cancer increased with concentrations >1000 kU/litre.

Can Covid cause CA125 to rise?

Recently, one retrospective study found that among all admitted patients with coronavirus disease 2019 (COVID-19) infection, increases in CA 125 and other cancer biomarkers were associated with severe COVID-19 infection (Wei et al., 2020).

How high is CA125 ovarian cancer?

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 kU/L).

Can stress cause CA125 to rise?

The most popular current theories suggest that CA 125 is synthesized by mesothelial cells in response to stress, which can be either mechanical stress caused by fluid overload, or inflammatory stress instigated by the release of mediators such as TNFα and interleukins [5,6].

How fast does CA125 increase?

The average time from serum CA125 increase to detection of a recurrent lesion by physical or imaging examination was 122 days. The correlation coefficient of serum CA125 level increase and tumor recurrence time was −0.674.

Can inflammation cause CA125 to rise?

As the CA 125 molecule is identified in normal peritoneal and fallopian tubes, it is not surprising that inflammation of these tissues can result in an increased concentration of serum CA 125.

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How accurate is ca 125?

Results: Using a CA125 cutoff of 30 U/mL, an overall sensitivity of 94.8% (96.6% specificity) was obtained when comparing malignancies versus healthy postmenopausal controls, whereas a cutoff of 65 U/mL provided a sensitivity of 83.9% (99.6% specificity).

Can you still have ovarian cancer if CA125 is normal?

A normal CA125 test cannot be used to rule out ovarian cancer. Some women with ovarian tumours never have an elevated CA125, and about half of women with early-stage tumours have a CA125 level in the normal range. So it’s possible to have ovarian cancer and a normal CA125 result.

What is a high tumor marker number?

Normal range: < 2.5 ng/ml. Normal range may vary somewhat depending on the brand of assay used. Levels > 10 ng/ml suggest extensive disease and levels > 20 ng/ml suggest metastatic disease.

Can benign ovarian cysts cause elevated CA 125?

Not necessarily. Elevated CA-125 (a protein in the blood that’s associated with ovarian cancer) is most often caused by common, ordinary or benign conditions such as uterine fibroids, ovarian cysts, endometriosis — or even just having your period.