Extra-cranial giant cell arteritis and Takayasu arteritis: How similar are they?

To compare clinical and imaging characteristics of patients with giant cell arteritis (GCA) and upper extremity (UE) arterial involvement to patients with Takayasu arteritis (TAK).A cohort of patients seen at the Mayo Clinic with TAK diagnosed between 1984 and 2009 and a cohort of patients with GCA and UE arterial involvement diagnosed between 1999 and 2008 were studied.The TAK cohort consisted of 125 patients (91% female); the mean age (±SD) at...