• Yuki Okamoto, Shunya Shindo, and Masahiko Matsumoto.
• Second Department of Surgery, Faculty of Medicine, University of Yamanashi, Chuo, Japan. yamanashimedical@yahoo.co.jp
• Ann Thorac Cardiovasc Surg. 2011 Jan 1; 17 (2): 190-3.

AbstractA 72-year-old man with a history of old myocardial infarction was admitted to our hospital for surgical treatment of a ruptured abdominal aortic aneurysm. His hemodynamics was stable. He had left lumbar pain on moving his left leg and constipation for ten days without abdominal pain and high fever. Elevation of fat density around the aneurysm and ureter involvement were noted on the computed tomography. These characteristic image findings indicated inflammatory aortic aneurysm. During operation, an infrarenal abdominal aortic aneurysm with an 8 cm maximum diameter was noted. This aneurysm was firm and thick and adhered to some organs due to inflammation. An 5 × 5 cm punched-out defect was found on the lateral wall of the aneurysm. We replaced the ruptured aneurysm with a Dacron graft. Histological examination showed that the aneurysm wall had an infiltrate of inflammatory cells, lymphoid follicles and thickened adventitia. From these findings, the diagnosis was inflammatory aortic aneurysm.

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