A 59-year-old man with a history of coarctation repair, mechanical aortic valve, and warfarin therapy presented with right flank pain. Computed tomography showed a large hematoma encircling an intact descending thoracic aorta. Computed tomography angiography demonstrated multiple areas of intercostal artery extravasation. An interventional radiologist performed angiography and embolization. The patient's course was complicated by an effusion and hypoxia, but no further bleeding was noted. We hypothesize that coarctation associated aneurysms and potential vessel wall weakness are the causes of hematoma in our case. We present this case with history of repaired coarctation with multiple spontaneous intercostal artery aneurysmal rupture.
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