text: Buerger's disease or thromboangiitis obliterans is a segmental vascular disease that causes occlusion and inflammation of the small and medium-sized vessels. Buerger's disease vasculitis is unique in having features of  hypercellularity with intraluminal thrombi in the vessel wall, but sparing the elastic internal laminae of the vessel wall. The details of pathogenesis are still largely unknown.
option_0: Buerger's disease pathophysiology
option_1: Takayasu's arteritis pathophysiology
option_2: Polyarteritis nodosa risk factors
option_3: Polyarteritis nodosa pathophysiology
option_4: Buerger's disease risk factors
option_5: Buerger's disease classification
option_6: Aortic sclerosis pathophysiology
option_7: Buerger's disease other diagnostic studies