A Unique Case of a Right Atrial Myxoma Infected With Escherichia coli

Division

West Florida

Hospital

Regional Medical Center Bayonet Point

Document Type

Case Report

Publication Date

5-27-2022

Keywords

escherichia, transthoracic echocardiogram, trans-esophageal echocardiogram, right atrial cardiac mass, right atrial myxoma

Disciplines

Bacterial Infections and Mycoses | Cardiology | Cardiovascular Diseases | Infectious Disease | Internal Medicine

Abstract

A 70-year-old white male, with past medical history of coronary artery disease, peripheral arterial disease status-post bilateral femoral artery stents, insulin-dependent diabetes mellitus, hypertension, hyperlipidemia, arthritis, tobacco use, and alcohol use, presented with shortness of breath and an abnormal finding on a recent transesophageal echo. This had revealed a large, fixed mass in the right atrium. Our differential diagnosis had included thrombus, endocarditis, myxoma, papillary fibroelastoma, sarcoma, and metastatic tumor. The cardiothoracic surgeon excised this mass, which upon culturing, revealed what we found to be the only reported case of an atrial myxoma infected with Escherichia coli. In addition to surgical excision, the patient was treated with six weeks of intravenous cefepime.

Publisher or Conference

Cureus

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