case_images: PMC6344918_01
case_images: (A) Chest CT shows lung mass in the left upper lobe. (B) Chest contrast-enhanced CT shows the mediastinal anomalous inferior lobar branch.
case_images: rjy359f01.jpg
case_images: PMC6344918_01_rjy359f01.jpg
case_images: rjy359F1
case_images: Computed tomography (CT) revealed a solid mass with a 39-mm maximum diameter in the left upper lobe (Fig. 1A). Retrospectively, a thin-section CT scan revealed that the mediastinal anatomical variation was that the first trunk of the PA flowed into the lingular and basal segments (Fig. 1B).
case_images: Aberrant mediastinal trunk of the pulmonary artery (A5+A8+A9b) arose from the left main pulmonary artery and ran in front of the bronchus.
case_images: rjy359f02.jpg
case_images: PMC6344918_01_rjy359f02.jpg
case_images: rjy359F2
case_images: The intraoperative view (Fig. 2) and illustrated schema (Fig. 3) show the anomalous branch as A5+A8+A9b.