Mycotic Aneurysm Due to Leclercia Adecarboxylata: A Complication of Vertebral Osteomyelitis

Leclercia adecarboxylata is a gram-negative bacterium and member of Enterobacteriaceae family. It has most frequently been isolated from lower wounds as a part of mixed flora. Mycotic aneurysms were first described by Osler and were mostly associated with infective endocarditis. We present the case of a male who presented with limb vein thrombosis, fatigue, and a history of back pain. The computed tomography scan revealed a saccular aneurysm and combined vertebral osteomyelitis of the third lumbar vertebra. An endovascular aneurysm repair with a tubed endograft was performed. Two years after the initial therapeutic management, he developed buttock claudication because of ostial stenosis of both common iliac arteries and a "kissing-stent" technique was performed. This is the first case described regarding Leclercia adecarboxylata as an etiologic factor of infected aneurysm development, its management and the short-term outcome.