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Obesity may interfere with prostate cancer blood test

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Obesity may interfere with prostate cancer blood test

(USA Today) UPDATED 2007-11-20

Blood tests that screen for prostate cancer may not be able to accurately diagnose the disease in obese men, new studies show. Obese men have lower concentrations of prostate-specific antigen (PSA) in their blood, either because they have higher blood volume or lower levels of testosterone, researchers suggest. Because most cases of prostate cancer are diagnosed after a blood test registers high PSA levels in the blood, obesity could cause the test to miss the presence of the disease. Read full story >

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