Abstract
We report 2 surgical cases of mycotic abdominal aortic aneurysm (MAAA). One combined with psoas abscess and vertebritis caused by Salmonella underwent axillo-bifemoral bypass with curettage of abscess lesions of the vertebral body followed by autologous bone transplantation. The other caused by Streptococcus pneumoniae which was thought to be in an early stage of the disease underwent resection of the aneurysm and in situ prosthetic graft replacement, and omentopexy around the graft. Their postoperative courses were good and no recurrence of infection was seen in either patient. MAAA is rare but has high mortality and it requires surgical treatment. Resection of the aneurysm, in situ reconstruction, and omentopexy is desirable but when infection is severe, extra-anatomical reconstruction should be considered as a surgical option.