Peer-reviewed veterinary case report
Nonhealing wound on cat's right tarsus caused by Actinomadura vinacea
By Wells, Bridgette et al.·Published in Veterinary clinical pathology·2018·Department of Pathology, United States·View original on PubMed →
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Original publication title: Actinomadura vinacea isolated from a nonhealing cutaneous wound in a cat.
- Species:
- cat
Plain-English summary
A 6-year-old spayed female domestic shorthair cat had a nonhealing wound on her right ankle that had been present for three years. The wound would improve with treatment but would come back when antibiotics were stopped. When she was examined, the wound had crusting and swollen areas but no drainage. Tests showed that the wound was infected with a type of bacteria called Actinomadura vinacea. The cat likely needed a specific treatment targeting this infection to help heal the wound properly.
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Abstract
A 6-year-old, spayed female, domestic shorthair cat was presented to the University of Georgia Veterinary Teaching Hospital for a 3-year history of a nonhealing wound on the right tarsus. The wound temporarily resolved with medical management, but intermittently recurred when antimicrobials were discontinued. At presentation, the wound had become refractory to antimicrobial therapy. Physical examination revealed a 1 cm diameter crust along the medial aspect of the right tarsus. Proximal to the crust, were 2 non-painful, fluctuant swollen areas that were free of drainage. Cytologic evaluation revealed atypical granulated cells, and a mesenchymal neoplasm was interpreted as a top differential diagnosis. Histopathology revealed marked, chronic, multifocal, pyogranulomatous dermatitis with abundant intralesional colonies of gram-positive, acid-fast-negative, filamentous bacteria. PCR and sequencing confirmed the infection to be caused by Actinomadura vinacea.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/30321465/