Air within the aneurysm sac following endovascular management of abdominal aortic aneurysm in a patient with acute pancreatitis.

A 44-year-old man with an abdominal aortic aneurysm presented with acute pancreatitis with abundant peripancreatic fluid and was successfully treated with endovascular stent graft. Early post-procedural radiological examinations showed air inside the aneurysm sac. Due to the possible infection from pancreatitis, antibiotic treatment was initiated, and he was closely monitored. Serial radiological examinations showed gradual decrease and eventual resolution of air at the end of one month. Follow-up computed tomography 10 months post-implantation revealed no problems. The presence of air inside the aneurysm sac could be a sign of graft infection. Although the air usually resolves spontaneously, close surveillance is necessary for cases with higher risk of infection.