“…Table 3 shows acquired extrinsic vascular CAO caused by arterial aneurysm of central vascular system or extremely thoracic anatomy. Arterial aneurysms of the innominate artery [20,26,[67][68][69][70][71], ascending aorta [71][72][73][74], aortic arch [73][74][75][76][77][78], descending thoracic aorta [74][75][76][79][80][81][82][83][84], and common carotid artery [85][86][87]] that compress the central airway are secondary to atherosclerotic degeneration [20,68,69,[73][74][75][76][82][83][84], heritable connective tissue disease [77][78][79][80], infection process [67,81,85,86,…”