Giant Cell Arteritis (GCA) is a vasculitis involving the large and medium vessels, especially the extracranial branches of the carotid arteries, and particularly, the temporal artery. Arterial wall inflammation leads to luminal occlusion and tissue ischemia, which is responsible for the typical cranial clinical manifestations of the disease. GCA also involves the aorta and its major branches and sometimes lead to artery stenoses or even to aortic aneurysms, with the consequent risk of dissection, which usually causes high mortality [1–3].
