Diagnosis of arteritis is based on unusual medical symptoms.[10] Similar symptoms may be caused by a number of other conditions, such as Ehlers-Danlos syndrome and Marfan syndrome (both heritable disorders of connective tissue), tuberculosis, syphilis, spondyloarthropathies, Cogans’ syndrome, Buerger's, Behcet's, and Kawasaki disease.[10] Various imaging techniques may be used to diagnose and monitor disease progression. Imaging modalities may include direct angiography, magnetic resonance angiography, and ultrasonography.[10]