CRP and rheumatic disorder: Table 1 compares PMR patients' characteristics to patients with other inflammatory rheumatism. No significant difference was found between PMR and other patients as far as age, sex, inflammatory parameters [e.g., C-reactive protein (CRP), erythrocyte sedimentation rate (ESR)] and steroids dose were concerned. Twenty nine (52.7%) patients in the PMR group and 25 (29.4%) among the other inflammatory rheumatisms patients received steroids before [18F]FDG PET-CT.