At GCA diagnosis, CRP (patients with and without VA affection: 6.4 mg/dL (median); reference <0.5 mg/dL) and ESR (patients with VA affection: 46 mm/h, patients without VA affection: 62 mm/h (median); reference <20 mm/h; p = 0.012) were elevated, as expected (Table 1). The gene discussed is ESR1; the disease is temporal arteritis.