Takayasu's arteritis: an unrecognized cause of pulmonary hypertension

Pulmonary arteritis and secondary pulmonary hypertension are common in patients with Takayasu's arteritis. These sequelae of arteritis have not been previously emphasized in the literature. In some patients, particularly young and middle-aged women, disproportionately severe involvement of the pulmonary arteries may be the cause of pulmonary hypertension of unknown etiology.