My father has just turned 60 and is in reasonable health...or so we thought.
He went for a well man check at his local GP who conducted blood tests. His PSA came back as 5.7, DRE was conducted and nothing unusual felt however his prostate was enlarged. A further blood test was completed a week or so later and the level had lower slightly 5.2.
He has had an MRI scan which showed two small areas of interest. A biopsy was conducted and 16 samples taken. He was informed that the areas found on the MRI scan were very small so they were not sure if these areas would actually be 'hit' during the biopsy procedure.
We have been given the results of the biopsy and were told only one of the 16 samples showed positive for cancer cells and the Gleason score was given as 4+5=9 which I understand is aggressive. He is now awaiting a CT scan and tests on his bones to see if the cancer has spread.
I have been reading a lot of these posts and similar sites however I am slightly confused. I realise compared to some people dad's PSA score is fairly low but his Gleason score is high. I understand that the Gleason score relates to the aggressiveness of the cancer and whether it's more likely to spread but why is his PSA levels still low? What does this mean? Can anyone help with explaining this to me?