[Association of infectious aneurysm and microbial spondylodiscitis: physiopathological hypotheses, diagnostic and therapeutic approach].

Two years after a Staphylococcus aureus septicaemia, in a patient with dermatopolymyositis occurred an infectious aneurysm of abdominal aorta with contiguous pyogenic spondylodiscitis. Coexistence of both pathologies is rare and physiopathological mechanisms still remain uncertain. However, many arguments in the present case report are in favour of the initial responsibility of an infectious aneurysm. Main interest in early diagnosing infectious aneurysm, allowed by new investigations such as magnetic resonance imaging and marked leukocyte bone scanning, is the prevention of major complications. Antibiotherapy and surgical removal of infectious aneurysm must be quickly achieved in every case.