Fulminant Development of Mega-aorta Due to Takayasu's Arteritis: Case Report and Review of the Literature

Takayasu's arteritis is a rare inflammatory arteriopathy characterized by segmental involvement of the aorta, its major branches, and, occasionally, the pulmonary arteries. Arterial inflammation generally results in occlusion, but Takayasu's arteritis occasionally presents as aneurysm formation. Takayasu's arteritis generally afflicts young women and is most often characterized by an acute episode of systemic illness and neurologic symptoms secondary to stenoses of the carotid and vertebral circulation. We report an unusual case of Takayasu's arteritis in a 43-year-old man who presented with severe back pain and provide a brief review of the literature.