Which tests are performed to confirm the diagnosis of thromboangiitis obliterans (TAO) (Buerger disease)?

Updated: Jul 27, 2020
  • Author: Naiem Nassiri, MD; Chief Editor: Vincent Lopez Rowe, MD  more...
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No specific laboratory tests confirm or exclude the diagnosis of thromboangiitis obliterans (TAO; also known as Buerger disease).

Arteriographic abnormalities consistent with TAO are sometimes seen in limbs that are not yet clinically involved; therefore, arteriography of all four limbs may be required. Echocardiography and computed tomography (CT) angiography (CTA) should always be performed in patients thought to have TAO in order to exclude a proximal source of thromboemboli or atheroemboli as the cause of distal vessel occlusion.

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