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What is PSMA?

Prostate-specific membrane antigen, or PSMA, is a biomarker that is located on the outside of prostate cancer cells. 

In metastatic prostate cancer, if your prostate cancer cells have an abundance of the PSMA biomarker, it means your prostate cancer is PSMA positive (PSMA+)
PSMA is an important biomarker and is found in more than 80% of men with prostate cancer.

Biomarker: A characteristic of your cancer that can be measured and give your doctor more information about your cancer.
Metastatic prostate cancer: Prostate cancer that has spread to other parts of your body.

PSMA can tell you more about your metastatic prostate cancer

Although PSA and PSMA are both important biomarkers for you to check, they tell you different things.

PSMA can tell you where your metastatic prostate cancer is progressing and where in your body it has spread.
It gives your doctor additional information about your disease and can help inform the decisions you and your doctor will make regarding your metastatic prostate cancer. 

PSA, prostate-specific antigen.

Learn about the difference between PSA and PSMA