Idiopathic pulmonary artery dilation

ABSTRACT

Idiopathic pulmonary artery dilation is a rare but definite clinical entity. It must be distinguished from dilatation secondary to congenital and acquired cardiac or pulmonary disorders causing pulmonary hypertension. A middle-aged woman with idiopathic pulmonary artery dilation who was initally referred for evaluation of a mediastinal tumor is described. Idiopathic pulmonary artery dilatation should be considered in any patient with a prominent pulmonary arch and normal peripheral lung vascularity (AU)