CRP and temporal arteritis: Two patients had inconclusive TABs that were not repeated, two patients had no available ESR at diagnosis (but elevated CRP, 105 mg/l and 175 mg/l), one had acute ischemic optic neuropathy with positive TAB but no other signs of GCA, one had aortic involvement by imaging, but no TAB was performed, and one had missing information on the initial clinical examination.