Journal of Medical Cases, ISSN 1923-4155 print, 1923-4163 online, Open Access
Article copyright, the authors; Journal compilation copyright, J Med Cases and Elmer Press Inc
Journal website

Case Report

Volume 12, Number 2, February 2021, pages 65-70

Aerococcus urinae: A Rare Cause of Endocarditis Presenting With Acute Stroke


Figure 1.
Figure 1. CT of head WO: patchy bifrontal white matter hypodensities (red arrows). CT: computed tomography; WO: without contrast.
Figure 2.
Figure 2. MRI of head WO: acute infarcts in the MCA distributions and ACA distributions, to a lesser extent (red arrows). MRI: magnetic resonance imaging; WO: without contrast; MCA: middle cerebral artery; ACA: anterior cerebral artery.
Figure 3.
Figure 3. TEE: a large mobile vegetation is seen on right coronary cusp with severe aortic valve regurgitation (red arrows). TEE: transesophageal echocardiogram.
Figure 4.
Figure 4. Echo: severe aortic valve regurgitation on colored Doppler flow (white arrow).
Figure 5.
Figure 5. Isolate growing on blood agar, from our microbiology lab: University of South Alabama Health University Hospital.
Figure 6.
Figure 6. Normal structure and function of bioprosthetic valve (red arrow).


Table 1. Biochemical Features of Aerococcus Species
TestA. urinaeA. sanguinicolaA. viridansA. christensiiA. urinaehominis
V: variable. Table obtained from [8, 16, 17].
Production of acid from:
Production of:
  Arginine dihydrolase-+---
  Pyroglutamic acid arylamidase-++--