ABSTRACT

The left common carotid artery originating from the brachiocephalic trunk is termed the bovine aortic arch. Al- though it is the third most-common normal variant found in 9% humans, the origin of this term remains unclear. Until now, It has not been reported in the literature bovine aortic arch togetherness with pulmonary aneurysm and bronchial compression. Herein, we present a case with bovine aorta arch and pulmonary artery aneurysm associated with bronchial compression, which is incidentally detected by X-ray film. A 56-year-old Caucasian fe- male admitted to the cardiology clinic with complaint of chest pain. Physical examination was unremarkable. Blood biochemistry values and cardiac markers were in normal range. Chest radiography revealed a widened me- diastinum and prominent pulmonary conus with no active pulmonary disease. A subsequent transthoracic echo- cardiography revealed left ventricular hypertrophy, left atrial enlargement (diameter: 41 mm), mild mitral and tricuspid valve insufficiency, dilatation of main pulmonary artery (parasternal short-axis view diameter: 33 mm), normal pulmonary artery pressure and normal left ventricular systolic function. Computed tomography revealed bovine aortic arch associated with pulmonary artery aneurysm (diameter: 53 mm). And left main bronch of trachea was critically squeezed by aortic arch. Aortic and pulmonary vascular anomalies should be con- sidered in patients with chest pain. And, identification with imaging modalities is important for prevention of chronic and irreversible complications.

Keywords: Bovine aorta arch Idiopathic pulmonary artery aneurysm Bronchial compression