Giant Cell Arteritis: When an Inspection Is Essential.

Background: The diagnosis of giant cell arteritis is based on clinical and analytical data. The definitive diagnosis is based on histopathologic study.

Methods: We present a patient with a typical headache, a prominent temporal artery in the examination, anemia, and elevation in erythrocyte sedimentation rate and C-reactive protein in blood analysis, and a halo sign in the sonography study, all compatible with giant cell arteritis.

Conclusions: When dealing a patient with a typical headache, a prominent artery in the inspection, and a visualization of halo sign in ultrasound examination, this diagnosis must be considered.