A Case of Klebsiella pneumoniae Liver Abscess Which Progressed to Pyomyositis and Infected Aneurysm of Aorta

Infectious arteritis is a rare complication of liver abscess, and infectious arteritis involving multiple arterial sites with pseudoaneurysm formation has not been described previously. A 74-year-old man treated for liver abscess complained of abdominal and neck pain. Abdominal computed tomographic angiography (CTA) revealed a decrease in the size of the liver abscess, but also disclosed a pseudoaneurysm in the distal descending thoracic aorta was newly noted. Neck CTA revealed arteritis with abscess formation in the left internal carotid artery (ICA). Follow-up CTA after antibiotic therapy showed a decrease in the size of the left ICA abscess and a significant increase in the size of the aortic pseudoaneurysm. To prevent the rupture of the pseudoaneurysm, an endovascular stent graft was used. The final CTA revealed the disappearance of the aortic pseudoaneurysm with good apposition of the grafted stent. The patient has been monitored for 3 years with no new clinical events. (Korean J Med 2015;88:570-575) 서 론 감염성 동맥염(infectious arteritis)은 혈관벽의 감염 및 염 증성 반응으로 동맥벽의 비가역적 파괴가 일어날 경우 감염 성 동맥류(infectious aneurysm) 또는 가성동맥류(pseudoaneurysm)를 유발할 수 있다. 감염성 동맥류는 그 유병률이 드물 다고 알려져 있으며, 대동맥(aorta)에 발생하는 경우는 전체 동맥류의 1.0-2.6% 정도를 차지한다고 알려져 있다[1]. 그러 나 동맥류와 가성동맥류는 파열(rupture) 및 출혈이 발생할 경우 높은 사망률 및 나쁜 예후와 직접적인 연관이 있어 임 상적으로 중요한 질환이다. 아직까지 간농양(liver abscess)과 연관되어 하행 흉부 대동맥과 내경동맥(internal carotid artery)

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A Case of Multiple Infectious Arteritis Complicated by Pseudoaneurysm Formation in a Patient with Liver Abscess

Lee

Kim

Cho

et al. 2015

Korean J Med

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A Case of Klebsiella pneumoniae Liver Abscess Which Progressed to Pyomyositis and Infected Aneurysm of Aorta

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A Case of Multiple Infectious Arteritis Complicated by Pseudoaneurysm Formation in a Patient with Liver Abscess

A Case of Multiple Infectious Arteritis Complicated by Pseudoaneurysm Formation in a Patient with Liver Abscess

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