[Descending Necrotizing Mediastinitis after Graft Replacement of the Thoracic Aorta:Report of a Case]

We report a case of a 64-year-old man with descending necrotizing mediastinitis. He had undergone ascending aortic replacement for Stanford type A acute dissection five years before, and thoracic endovascular aortic repair from the distal arch to the descending aorta for dilation of residual dissection three years before. The patient was admitted to our hospital complaining persistent fever, rubescent neck and chest. Computed tomography( CT) revealed a deep-seated mass extending between the neck and the right upper mediastinum and another mass around the ascending aorta graft. Computed tomography-guided drainage revealed infection of both masses. Surgical debridement, graft replacement, and omental flap transposition were performed. He recovered uneventfully, and no relapse of infection was observed.