Sommer F, et al. - In patients with clinically suspected giant cell arteritis (GCA), researchers studied the effect of ocular symptom, non-ocular symptom, erythrocyte sedimentation rate (ESR), C-reactive protein (CRP) and temporal artery ultrasound (TAU) findings on the predictive value of a positive temporal artery biopsy (TAB). Data from 68 patients with clinically suspected GCA who had TAB between 2015 and 2017 were analysed in a retrospective, interventional study. Five parameters were included in the analysis: ocular symptom, non-ocular symptom, ESR, CRP level and TAU findings. A positive TAB was not significantly linked to the presence of ocular symptoms. The combined parameters TAU, ESR and CRP were able to predict a positive TAB in 97.3% of all patients using discriminant analysis. Data reported that the positive predictive value was 78.3% and the negative predictive value was 95.4%. In patients who show an elevated ESR and CRP level and a positive TAU, temporal artery biopsy to confirm the diagnosis of GCA may not be compulsory.