PMC3261610_01
Contrast-enhanced axial CT images of the chest. (a) A common trunk anomalous bronchial artery arises from the left vertebral artery. (b) This bronchial artery courses inferiorly along the trachea. (c) Bifurcation of the bronchial artery into left and right branches, which supply the respective lungs.
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F1
While pulmonary embolism was not present, incidental finding was made of an anomalous bronchial artery arising from the proximal aspect of a left vertebral artery originating from the aortic arch between the left common carotid and left subclavian arteries [Figures 1a-c].
(a) Curved multiplanar reconstruction demonstrates the course of the bronchial artery within the mediastinum. (b) 3D volume rendered image demonstrates origin of the bronchial artery from the left vertebral artery (The right brachiocephalic artery has been excluded). (c) Note the close approximation of the bronchial artery with the adjacent tracheobronchial tree. [LSCA: Left subclavian artery; LCCA: Left common carotid artery; L Vertebral Art: left vertebral artery; RBCA: Right brachiocephalic artery].
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F2
No additional bronchial arteries were identified despite meticulous review of the source axial, reconstructed multiplanar, and 3D volume rendered images [Figure 2a-c].