Coronary artery to bronchial artery anastomosis in Takayasu's arteritis.

A 27-year-old woman presented with ischemia of the left arm and dizziness together with acute lateral wall myocardial ischemia. Physical examination showed narrowing of the arteries to the head and neck and upper limbs suggesting Takayasu's arteritis. Angiography demonstrated pulmonary and systemic involvement. There was complete occlusion of the right upper lobe pulmonary artery and a large collateral artery from the circumflex coronary artery which anastomosed with the right bronchial artery. This anastomotic channel has not to our knowledge been described Takayasu's arteritis.