Late-appearing brachiocephalic aneurysm: an atypical vascular sequella of Kawasaki disease.

Kawasaki disease (KD) is an acute vasculitis that can result in cardiovascular sequelae. One of the most serious consequences of KD is the development of arterial aneurysms that can lead to thrombosis and ischemia. Commonly, these lesions, occurring early in the course of KD, are found in the coronary arteries. However, this location is not exclusive. This report presents a case of KD with atypical findings of a late-appearing brachiocephalic artery aneurysm. The authors suggest that for patients with complicated KD, surveillance should include a careful vascular survey to discover aneurysms distant from the heart.