Abstract
A 72-year-old man underwent EVAR with the Endurant IITM stent-graft. Five months after, he felt lumbago and lower abdominal pain. Six months after the procedure, he had a fever and aggravated lumbago. By a nearby doctor, enhanced computed tomography shows a mantle sign at abdominal aorta. So, he was diagnosed as having infectious abdominal aortic aneurysm and administered antibiotics. However, he was referred to our department because his symptom did not improve with antibiotics administration. Complete blood count and blood chemistry findings showed inflammatory response, but the serum procalcitonin value was within normal limits and repetitive blood cultures were negative. Because inflammatory abdominal aortic aneurysm after EVAR was suspected, we started daily administration of prednisolone (10 mg/day), and 6 days of the steroid administration his symptom and inflammatory findings disappeared. We report a rare case of development of inflammatory abdominal aortic aneurysm after EVAR.
