New PSA test may predict prostate cancer's aggressiveness


April 26, 2010

USA Today

An updated version of the standard prostate cancer test can help improve predictions about which men might not require immediate treatment, researchers report.

The basic test measures blood levels of prostate-specific androgen (PSA), a protein produced by prostate gland cells. But the standard PSA test cannot distinguish between cancers that grow so slowly they can safely be left alone and aggressive life-threatening tumors that call for surgery or radiation therapy... read more