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Updated: May 25, 2025

Visualization of Streptococcus pneumoniae within Cardiac Microlesions and Subsequent Cardiac Remodeling
Published on: April 7, 2015
[Stroke and vegetations on cardiac valves - Case report]
Sigrun Jonsdottir1, Thorunn Jonsdottir2, Olafur Arni Sveinsson3
1Department of Neurology, University Hospital of Iceland, Reykjavik, Iceland.
Introduction:
Ischemic stroke is a common disease that can stem from multiple different causes, some of which are uncommon. A 43 year old woman with a history of systemic lupus erythematosus and antiphospholipid syndrome visited the emergency department due to dysarthria and was diagnosed with ischemic stroke. Transesophageal echocardiogram showed a mass on the mitral valve. After further workup, she was diagnosed with Libman-Sacks endocarditis, which is caused by endothelium damage along with hypercoagulability, and can form due to systemic lupus erythematosus or antiphospholipid syndrome. Libman-Sacks endocarditis is a nonbacterial thrombotic endocarditis and thromboembolism is rare. It is treated with anticoagulation. It is also important to treat the underlying cause of the endocarditis.
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