[Pulmonary artery aneurysm with rupture]

Literature on the rare complication--lung artery rupture--is presented. One authors' observation is described: rupture of the lung artery aneurysm in a patient with rheumatic vitium cordis. It the authors' opinion, rupture of the lung artery results from the combination of several factors: hypertension in the lung artery system, structural alterations of the artery wall with the decrease of its solidity.