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What is Prostate Cancer
What is Prostate Cancer?

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Ask the Doctor
Ask the Doctor

Q & A - Prostate Cancer

The Q&A's are never to be used as a substitute for professional medical advice, diagnosis, or treatment of your case. Always seek the advice of your physician(s) with any questions you may have regarding you medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read on this site.

The questions and answers are divided into three sections:

Additional Questions is an archive of past questions and answers. Visit this page if the FAQs do not answer your questions or if you are interested in learning more about a particular topic.

If the current Q&A’s do not answer your question, please submit a question.

Clicking on the questions below will provide you with the corresponding answer. Dr. Catalona has answered all questions.


Recent Questions
All questions are answered by Dr. William J. Catalona.

© David Taylor Cross from one side to the other using the path that's best for you.
1.  Is it true that undetectable PSA is the detectable limit of the lab?
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2.  For the past 8 years (19 tests), my PSA is absolutely constant at 1.4. I am 73 years old, and my free PSA ratio is at 27%. Last time the PSA remains at 1.4 but the ratio drops to 15%. Is this an anomaly with the test, or my prostate?
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3.  How bad is a PSA of 1.4?
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4.  After taking labetalol for high blood pressure I stopped producing semen, and my PSA went from 1.9 to 29. Over 12 months of no medication it has dropped to 20, 15, 9, 7, 5, 4, and now 3.9. Should I still be concerned?
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5.  Can taking a biopsy leave scar tissue that can be mistaken later as a tumor?
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6.  Up to now I have been getting annual PSA tests as part of my normal blood work, but this time the doctor said Medicare no longer pays for the PSA test to be done. Is this true, or is there a special code that should be used for patients with a history of prostate cancer and possible Agent Orange association? Fortunately, all of my PSA tests taken up to last year have had a negligible reading. I am approaching 12 years after surgery; should I even still be getting the test?
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