Giant cell arteritis
Giant cell arteritis is the most common systemic vasculitis in patients over the age of 50 years. It affects cranial vessels, the aorta and extracranial vessels (e.g. extremity arteries).
Giant cell arteritis belongs to the category of autoimmune diseases and is mainly characterized by a giant cell granulomatous, necrotizing vasculitis affecting the large and medium-sized arteries. In particular, both the ophthalmic artery and the external carotid artery are affected.
About 2/3 of patients report headaches. Other less common symptoms include scalp and massaging claudication. The cause of this disease is unclear. Women are much more likely to be affected than men.