CASE REPORT


Actinotignum schaalii and Aerococcus urinae as Etiology of Infected Kidney Cyst: A Diagnostic Challenge



Veronika Vorobieva Solholm Jensen1, 2, *, Rimtas Dargis1, Xiaohui Chen Nielsen1, Lothar Wiese3, Jens Jørgen Christensen1, 4
1 Department of Clinical Microbiology, Slagelse Hospital, Slagelse, Denmark
2 Department of Virus and Microbiological Special Diagnostics, Infectious Disease Preparedness, Statens Serum Institut, Copenhagen, Denmark
3 Department of Internal Medicine at Zealand University Hospital, Roskilde, Denmark
4 Institute of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark


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Creative Commons License
© 2020 Jensen et al.

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

* Address correspondence to this author at Department of Virus and Microbiological Special Diagnostics, Division of Infectious Disease Preparedness, Statens Serum Institut, Artillerivej 5, DK-2300, Copenhagen S, Denmark; E-mail: veronika.v.vorobieva@gmail.com


Abstract

The case presented here illustrates a sometimes complex disease presentation where interdisciplinary teamwork is essential. A 74-years-old woman with stable chronic obstructive pulmonary lung disease and a composite graft aortic valve implant was admitted to hospital with an episode of acute lower back pain combined with long-term fever. The final diagnoses of a left-sided, infected and radiologically evident kidney cyst caused by the urinary tract pathogens Actinotignum schaalii and Aerococcus urinae was established by the use of partial 16S/18S rRNA gene sequence analysis on kidney cyst drainage material taken after four weeks of relevant antibiotic therapy.

Keywords: Actinotignum schaalii, Aerococcus urinae, Partial 16S/18S rRNA gene sequence analysis, Kidney cyst, Chronic obstructive pulmonary lung disease, Osteoporosis, Hypercholesterolemia, Hypertension.