PSA and CPPS
Posted: Sat Jul 15, 2006 9:21 pm
This question is frequently asked. Raised PSA scores cause a lot of concern.
I received this email from a friend (I do not usually answer medical emails):
I received this email from a friend (I do not usually answer medical emails):
I replied:[email protected] wrote:Why does PSA rise in CP/CPPS patients in the absence of infection? My GP was concerned with my PSA (4-pt.-something) and wanted me to see a urologist!
webslave wrote: Inflammation alone can raise PSA. In general, it can be elevated due to BPH, prostatitis, prostatic infarct, and likely some other reasons. It can also vary by chance alone, and of course there could have been a lab error. A recheck after a month or so is wise.
PSA is not specific for prostate cancer, but if you have an asymptomatic PSA elevation, look out. It is unwise to say, "Hey it's probably just inflammation...forget about it"... It probably isn't prostate cancer, but IMHO this should be checked out.
Men with chronic prostatitis / chronic pelvic pain syndrome have very different PSA scores. Some have huge boggy prostates with PSA's >10 and no symptoms and others have horrible symptoms with tiny prostates and PSA's <1.0.
You can have prostate cancer with a PSA under 4 and have benign disease with a PSA in the 20's.
There are cancers which do NOT raise PSA.
Other tests: "total free PSA ratio" test has no value. Elevations from prostate cancer and prostatitis give similarly low values. Only BPH is associated with a high value for Free:total PSA.
Although some labs use 4.0 as the normal cutoff for PSA, many urologists now use an age stratified scale as follows:
Age 40-49 0-2.5 normal
Age 50-59 0-3.5 normal
Age 60-69 0-4.5 normal
Age 70-79 0-6.5 normal
So, if you have a raised PSA score it *is* worth seeing a uro to have the prostate examined digitally, and possibly by ultrasound, and then by biopsy if indicated.