Prostate cancer is the second leading cause of death among American men, behind lung cancer. The prostate gland, which manufactures seminal fluid, usually causes no problems until midlife when a tumor can enlarge the gland and interfere with urination. Each year, 40,000 men will die from prostate cancer and more than 200,000 will be diagnosed with it.
Many new cases are coming to light solely because of the PSA test. The test -- which measures the level of an enzyme known as prostate-specific antigen, a substance usually elevated in men with prostate cancer -- has sparked a national debate among doctors, some of whom say it shouldn't be done at all.
Continued on page 2: A Good Thing?
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