Fig. 1

Preoperative contrast-enhanced pulmonary CT scan: A Lung window reveals multiple patchy opacities in the lower lobe of the left lung. B Mediastinal window reveals an anomalous artery originating from the thoracic aorta. C, D MPR reconstruction reveals the anomalous artery accompanied by the left lower pulmonary vein. E, F MIP (E) and VR (F) reconstructions demonstrate the anomalous artery originating from the thoracic aorta, with normal development of the left lower pulmonary artery