Thanks for your reply Lori. I was diagnosed with PV initially by my primary care physician at the VA a little over a year ago. I have been in treatment with a civilian oncologist, initially requiring phlebotomy and drug (hydroxyurea) but after 4 months, just the drug. I've been stable with lab numbers since then. I'm a combat veteran of Vietnam with a lot of exposure to "agent orange" and am curious about the relationship of PV and other suspicious medical conditions that have shown up since my return (skin and lung) that have not yet been recognized by the VA in it's list of "accepted" links to the defoliants that were used.