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Case Report

Unusual Presentation of Feline Leprosy Caused by Mycobacterium lepraemurium in the Alpine Region

1
Institute for Food Safety and Hygiene, Section of Veterinary Bacteriology, Vetsuisse Faculty, University of Zurich, 8057 Zurich, Switzerland
2
Institute of Veterinary Pathology, Vetsuisse Faculty, University of Zurich, 8057 Zurich, Switzerland
3
Vetaugenblick.ch, Wiesentalstrasse 142, 7000 Chur, Switzerland
*
Author to whom correspondence should be addressed.
Academic Editor: Danièlle Gunn-Moore
Pathogens 2021, 10(6), 687; https://doi.org/10.3390/pathogens10060687
Received: 4 May 2021 / Revised: 27 May 2021 / Accepted: 28 May 2021 / Published: 1 June 2021
(This article belongs to the Section Bacterial Pathogens)
A 9-year-old cat was referred with multiple, raised, ulcerative and non-ulcerative nodules in the periocular area, sclera and ear-base region, and on the ventral aspect of the tongue. In addition, a progressive ulcerative skin nodule on the tail was observed. Fine-needle aspirations of multiple nodules from the eyelid and sclera revealed the presence of histiocytes with numerous acid-fast intracellular bacilli. The replication of slowly growing mycobacteria in liquid media was detected from biopsied nodules after three months of incubation. The molecular characterization of the isolate identified Mycobacterium (M.) lepraemurium as the cause of the infection. The cat was treated with a combination of surgical excision and a four-week course of antimicrobial therapy including rifampicin combined with clarithromycin. This is an unusual manifestation of feline leprosy and the first molecularly confirmed M. lepraemurium infection in a cat with ocular involvement in Europe. The successful combination of a surgical and antimycobacterial treatment regimen is reported. View Full-Text
Keywords: Mycobacterium lepraemurium; feline leprosy; cat; nontuberculous mycobacteria; cutaneous mycobacteriosis Mycobacterium lepraemurium; feline leprosy; cat; nontuberculous mycobacteria; cutaneous mycobacteriosis
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MDPI and ACS Style

Ghielmetti, G.; Schmitt, S.; Friedel, U.; Guscetti, F.; Walser-Reinhardt, L. Unusual Presentation of Feline Leprosy Caused by Mycobacterium lepraemurium in the Alpine Region. Pathogens 2021, 10, 687. https://doi.org/10.3390/pathogens10060687

AMA Style

Ghielmetti G, Schmitt S, Friedel U, Guscetti F, Walser-Reinhardt L. Unusual Presentation of Feline Leprosy Caused by Mycobacterium lepraemurium in the Alpine Region. Pathogens. 2021; 10(6):687. https://doi.org/10.3390/pathogens10060687

Chicago/Turabian Style

Ghielmetti, Giovanni, Sarah Schmitt, Ute Friedel, Franco Guscetti, and Ladina Walser-Reinhardt. 2021. "Unusual Presentation of Feline Leprosy Caused by Mycobacterium lepraemurium in the Alpine Region" Pathogens 10, no. 6: 687. https://doi.org/10.3390/pathogens10060687

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