Orbital actinomycotic mycetoma caused by Streptomyces cinnamoneus

CASE SUMMARY: An 18-month-old male neutered Ragdoll cat presented with an 8 week history of progressive unilateral right-sided mucopurulent nasal discharge and exophthalmos. Magnetic resonance imaging revealed a heterogeneous right retrobulbar mass and bilateral nasal cavity disease. Filamentous str...

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Autores principales: Walton, Stuart, Martin, Patricia, Tolson, Carla, Plumridge, Susannah, Barrs, Vanessa R
Formato: Online Artículo Texto
Lenguaje:English
Publicado: SAGE Publications 2015
Materias:
Case Report
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5362864/
https://www.ncbi.nlm.nih.gov/pubmed/28491361
http://dx.doi.org/10.1177/2055116915589836
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author Walton, Stuart
Martin, Patricia
Tolson, Carla
Plumridge, Susannah
Barrs, Vanessa R
author_facet Walton, Stuart
Martin, Patricia
Tolson, Carla
Plumridge, Susannah
Barrs, Vanessa R
author_sort Walton, Stuart
collection PubMed
description CASE SUMMARY: An 18-month-old male neutered Ragdoll cat presented with an 8 week history of progressive unilateral right-sided mucopurulent nasal discharge and exophthalmos. Magnetic resonance imaging revealed a heterogeneous right retrobulbar mass and bilateral nasal cavity disease. Filamentous structures seen on cytology of retrobulbar and nasal biopsies were mistakenly identified as filamentous fungal hyphae. Subsequent investigations revealed that the cat had a retrobulbar actinomycotic mycetoma with invasion of the globe. The aetiological agent was identified on 16S recombinant DNA sequencing as Streptomyces cinnamoneus. After exenteration and chronic antimicrobial therapy the cat was alive and well 3 years after presentation. RELEVANCE AND NOVEL INFORMATION: This is the first report of a pathogenic role of S cinnamoneus in a cat. Orbital actinomycotic mycetomas in cats can resemble mycotic granulomas.
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spelling pubmed-53628642017-05-10 Orbital actinomycotic mycetoma caused by Streptomyces cinnamoneus Walton, Stuart Martin, Patricia Tolson, Carla Plumridge, Susannah Barrs, Vanessa R JFMS Open Rep Case Report CASE SUMMARY: An 18-month-old male neutered Ragdoll cat presented with an 8 week history of progressive unilateral right-sided mucopurulent nasal discharge and exophthalmos. Magnetic resonance imaging revealed a heterogeneous right retrobulbar mass and bilateral nasal cavity disease. Filamentous structures seen on cytology of retrobulbar and nasal biopsies were mistakenly identified as filamentous fungal hyphae. Subsequent investigations revealed that the cat had a retrobulbar actinomycotic mycetoma with invasion of the globe. The aetiological agent was identified on 16S recombinant DNA sequencing as Streptomyces cinnamoneus. After exenteration and chronic antimicrobial therapy the cat was alive and well 3 years after presentation. RELEVANCE AND NOVEL INFORMATION: This is the first report of a pathogenic role of S cinnamoneus in a cat. Orbital actinomycotic mycetomas in cats can resemble mycotic granulomas. SAGE Publications 2015-06-16 /pmc/articles/PMC5362864/ /pubmed/28491361 http://dx.doi.org/10.1177/2055116915589836 Text en © The Author(s) 2015 http://creativecommons.org/licenses/by-nc/3.0/ This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 3.0 License (http://www.creativecommons.org/licenses/by-nc/3.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access page(http://www.uk.sagepub.com/aboutus/openaccess.htm).
spellingShingle Case Report
Walton, Stuart
Martin, Patricia
Tolson, Carla
Plumridge, Susannah
Barrs, Vanessa R
Orbital actinomycotic mycetoma caused by Streptomyces cinnamoneus
title Orbital actinomycotic mycetoma caused by Streptomyces cinnamoneus
title_full Orbital actinomycotic mycetoma caused by Streptomyces cinnamoneus
title_fullStr Orbital actinomycotic mycetoma caused by Streptomyces cinnamoneus
title_full_unstemmed Orbital actinomycotic mycetoma caused by Streptomyces cinnamoneus
title_short Orbital actinomycotic mycetoma caused by Streptomyces cinnamoneus
title_sort orbital actinomycotic mycetoma caused by streptomyces cinnamoneus
topic Case Report
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5362864/
https://www.ncbi.nlm.nih.gov/pubmed/28491361
http://dx.doi.org/10.1177/2055116915589836
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