[Takayasu's arteritis with primary involvement of the pulmonary artery]

The authors demonstrate a 23-year-old women in the fourth month of pregnancy with complaints and findings typical for Takayasu's arteritis. The onset of the disease can be safely located to the area of the pulmonary artery where the aorta and its branches were still unaltered. In the course of nine years not only a severe occlusive stage developed in the area of the thoracic aorta and its branches but there was also progression as regards the affection of the pulmonary artery. In the area of the subclavicular artery on the left balloon dilatation was performed. The collateral arterial blood supply of the left lung from the left coronary artery is also unusual.