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Fig. 14C —21-year-old woman with history of three previous aortic coarctation repairs, most recent of which was 8 years earlier and consisted of interposition Dacron (DuPont) graft. She presented emergently with massive hemoptysis. Postoperative maximum-intensity-projection CT angiography reveals extraanatomic Dacron Hemashield (Meadox Medicals) bypass (arrowheads) from ascending aorta to intraabdominal supraceliac aorta and surgical occlusion of arch distal to left common carotid artery and proximal descending thoracic aorta. Also note extraanatomic graft from aortic graft to left subclavian artery (arrow).