Abstract
There are few reports of abdominal aortic aneurysm (AAA) infection with Campylobacter fetus. We report a case of AAA infected with C. fetus, in which the aneurysm rapidly expanded. A 65-year-old man initially presented with the chief complaint of high fever and severe lumbar pain. Contrast-enhanced computed tomography (CECT) on arrival showed a 43-mm fusiform AAA with a slightly thickened aortic wall, suggestive of either an inflammatory or an infected AAA. The symptoms improved with antibiotic administration for three days. However, the C-reactive protein level remained high.
Two sets of blood cultures collected on admission revealed the presence of C. fetus on day 13. CECT on day 14 showed that the AAA had rapidly expanded to 55 mm in diameter. We diagnosed an AAA infected with C. fetus, and performed replacement in situ surgery using a rifampicin-bonded graft, due to the high risk of rupture.
At the 5-month follow-up, the patient was symptom-free and follow-up CT was uneventful.
