Fig. 2

Preoperative three-dimensional computed tomography angiography of the right lung. An aberrant mediastinal A7 (yellow arrow) is seen arising directly from the right main pulmonary artery (blue vessel) on the opposite side of A1 + 2a + 3, the first branch of the pulmonary artery, running between the superior and inferior pulmonary veins (red vessel) and progressing into the medial portion of the right lower lobe