Are the results of PAP (Prostatic Acid Phosphatase) , CgA
(Chromogranin A) and CEA (Carcinoembryonic antigen) tests meaningful
by themselves or are multiple tests needed to track  velocity or
changes in values necessary for meaningful diagnostic purposes? I
just recently asked my oncologist for these tests because of my
elevated Gleason (4+4=8) at time of RP. Its been two years since my RP
with consistent <0.10 PSAs but after reading some stuff regarding high
Gleasons and lower than usual PSA readings, I sort of wanted to be a
little more aggressive with the diagnostics. It would have been nice
to have had them done at the time but I was not knowledgeable enough
then to request them. Just for the record, my PAP was 0.7, my CgA was
8.8 and my CEA was 1.1 and I have no idea what those numbers mean.

Thanks,

WhiteSoxFan