A 71-year-old male presented with 1-day history of back pain. Imaging displayed an enlarging thoracic aortic aneurysm with gas in the aortic wall. Blood cultures grew Clostridium septicum. He underwent resection, debridement, and in situ aortic replacement with a rifampin-soaked graft under deep hypothermic circulatory arrest. His recovery was uncomplicated. (Level of Difficulty: Beginner.).
Keywords: Clostridium septicum; infectious aortitis; mycotic thoracic aortic aneurysm.
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