Fig. 1

Imaging of the mediastinum. Computed tomography (CT) in the (A) axial and (B) sagittal planes shows a mediastinal BAA (red arrow) with an associated hematoma and right hemothorax. C Three-dimensional CT showing the long neck (yellow arrowheads) of the BAA (red arrow) and its origin from the descending aorta. D Bronchial arteriography showing a BAA (red arrow) in the right bronchial artery. E The BAA (red arrow) is successfully treated with catheter and coil embolization. F Subsequent CT image showing the treated BAA (red arrow) and expanded hemothorax. BAA bronchial artery aneurysm, CT computed tomography