PSA stands for prostate-specific antigen, a substance naturally produced in prostate tissue. A small amount of PSA regularly sneaks into the bloodstream, and low blood concentration is considered ...
News that former President Joseph Biden has advanced prostate cancer has revived long-standing questions about the benefits versus the harms of a blood test that screens for the most commonly ...
PSA levels can be elevated for reasons other than cancer, such as an enlarged or inflamed prostate. False positive and false negative PSA test results are possible. The American Cancer Society does ...
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