337 PMR pts studied by FDG PET, followed 6 mos - 9% (31) had subclinical vasculitis (GCA) - 21 had isolated LG vessel - 3 isolated cranial vasculitis - 7 both cranial & LG vessel vasculitis. Steroid use higher w/ subclinical vasculitis, but not relapse https://t.co/uwXf4ucVnQ https://t.co/AOacTnQZaS