Thromboangiitis Obliterans (Buerger Disease) By Koon K Teo, MBBCh, PhD, McMaster University Reviewed / Revised May 2021 | Modified Sep 2022 View Patient Education Symptoms and Signs Diagnosis Treatment Key Points Thromboangiitis obliterans is inflammatory thrombosis of small and medium-sized arteries and some superficial veins, causing arterial ischemia in distal extremities and superficial thrombophlebitis.