There is more and more recent evidence that PMR is not a vasculitis. There hasn't been enough time to update all the websites. Some people may claim PMR is a vasculitis based on outdated information.

Until all the evidence is presented one way or the other it is just my opinion that PMR is not a vasculitis. However PMR has some kind of relationship with vasculitis and especially GCA. The outdated view that PMR is a vasculitis stems from this close relationship with GCA.

Personally, I never thought PMR was a vasculitis but I don't know for sure. You can't disagree with self proclaimed experts who claim to know everything about PMR. I "respectfully disagreed" with one of the self proclaimed experts once. They said I was being disrespectful for disagreeing with them!