Mycotic aneurysm after percutaneous transluminal femoral artery angioplasty

Qureshi, Talha; Hawrych, Andrew; Hopkins, N. F. G.

doi:10.1177/014107689909200515

Cited by 16 publications

(7 citation statements)

References 5 publications

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“…The pathophysiology is thought to be due to a direct intimal wall injury with susceptibility to bacterial seeding 12 18 20. Mycotic aneurysms could also arise due to septic emboli, direct bacterial inoculations,21 22 a pre-existing aneurysm, contiguous infection, antecedent infections or in an immunocompromised host 12 23. The patient in this case likely had bacterial seeding to an atherosclerotic thoracic aorta due to a previous transient bacteraemia during her cardiology admission.…”

Section: Discussionmentioning

confidence: 95%

Unexpected source ofProteus mirabilisbacteraemia

Nagiah

Badbess

2018

BMJ Case Rep

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Mycotic (infected) aneurysm involving the thoracic aorta is an exceedingly rare and life-threatening condition that is associated with high morbidity and mortality. We report an unusual source of Proteus mirabilis bacteraemia thought to be due to an infected aneurysm in the thoracic aortic arch in an elderly woman. Source of gram-negative bacteraemia is usually isolated to an intra-abdominal or a pelvic source. Proteus bacteraemia from an intrathoracic pathology is very uncommon, and in this case led to a delay in diagnosis. Although an infected aneurysm is a rare source of gram-negative bacteraemia, it must always be considered when common causes of bacteraemia have been ruled out especially in patients with vascular risk factors.

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Section: Discussionmentioning

confidence: 95%

Unexpected source ofProteus mirabilisbacteraemia

Nagiah

Badbess

2018

BMJ Case Rep

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“…A mycotic aneurysm is a dilation of an arterial wall due to infection. Risk factors for the development of a mycotic aneurysm include arterial injury, antecedent infection, impaired immunity (eg, cancer), atherosclerosis, and pre-existing aneurysm [11] , [12] , [13] , [14] , [15] – 16] . There are 4 major etiologies for a mycotic aneurysm: direct bacterial inoculation, bacteremic seeding, contiguous infection, and septic emboli from infective endocarditis [17] , [18] – 19] .…”

Section: Discussionmentioning

confidence: 99%

Differential diagnosis of a ring-enhancing brain lesion in the setting of metastatic cancer and a mycotic aneurysm

Tran

Rahman

Weed

et al. 2021

Radiology Case Reports

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A diagnostic challenge arises when a patient presents with a ring-enhancing lesion of the brain in the setting of both metastatic cancer and a source of infection. We report a case depicting this dilemma in an 80-year-old man with a history of metastatic oral squamous cell carcinoma who presented for left-sided hemiparesis. Computed tomography and magnetic resonance imaging revealed a ring-enhancing lesion of the right parietal vertex without signs of stroke. He was also found to have an aneurysm of the right common carotid artery with abnormal surrounding soft tissue density and gas, findings suspicious for a mycotic aneurysm. The likelihood of the brain lesion being an abscess formed by septic embolization was raised, leading to the recommendation to surgically explore the brain lesion and repair the aneurysm. Nevertheless, a high index of suspicion for a brain abscess and mycotic aneurysm is necessary in this type of clinical scenario.

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“…Mycotic aneurysms and infected aneurysms are synonyms. [8] Despite their rare occurrence, they require close follow-up because they can cause high mortality and morbidity such as bleeding and sepsis. [9] Arterial injury, premature infections (such as endocarditis, pneumonia, dental infection, cholecystitis), impaired immunity, atherosclerosis, current aneurysm can be listed as mycotic aneurysm risk factors.…”

Section: Discussionmentioning

confidence: 99%