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Case Reports
. 2015 Oct 22:8:113-5.
doi: 10.1016/j.nmni.2015.10.003. eCollection 2015 Nov.

Chronic endocarditis due to Legionella anisa: a first case difficult to diagnose

F Compain  1 , P Bruneval  1 , S Jarraud  2 , S Perrot  3 , S Aubert  3 , V Napoly  4 , A Ramahefasolo  5 , J-L Mainardi  1 , I Podglajen  6
Affiliations
Case Reports

Chronic endocarditis due to Legionella anisa: a first case difficult to diagnose

F Compain et al. New Microbes New Infect. .

Abstract

Endocarditis due to Legionella spp. is uncommon but presumably underestimated given the prevalence of Legionellae in the environment. We report a first and unusual case of chronic native valve endocarditis due to L. anisa and advocate that the diagnosis of endocarditis be made collaboratively between the cardiologist, surgeon, microbiologist and pathologist.

Keywords: 16S rDNA PCR; Legionella; diagnosis; endocarditis; histologic analysis.

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Figures

Fig. 1
Fig. 1
Valve sections stained with haematoxylin and eosin. (A) Low-power view of aortic valve showing scar fibrosis. Minute vegetation (arrow) is present at surface. (Inset) Higher-magnification image showing the vegetation (arrow) above scarring tissue with angiogenesis and slight mononuclear cell inflammation (arrowhead). Original magnification, ×2.5; inset, ×10. (B) Valve inflammation with mononuclear and giant cells (arrows). Structure of the valve is disrupted by scar fibrosis. Original magnification, ×10.
See this image and copyright information in PMC

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