Retrospective study 127 suspected #GCA w/ negative temporal artery Bx - 73 finally Dx w/ GCA & 61/73 were FDG PET-CT pos.(84%). In 54 nonGCA, FDG PET-CT was positive in 8 (15%). FDG-PET sensitivity 84% (100% extracranial LV-GCA), specificity of 85%. https://t.co/Uc8dbdzIil https://t.co/z2d7h6jCFP