Peer-reviewed veterinary case report
Cat with localized Microsphaeropsis arundinis fungal infection under
By Krockenberger, Mark B et al.·Published in Journal of feline medicine and surgery·2010·Faculty of Veterinary Science, Australia·View original on PubMed →
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Original publication title: Localised microsphaeropsis arundinis infection of the subcutis of a cat.
- Species:
- cat
Plain-English summary
An 11-year-old spayed domestic cat developed two swollen areas under the skin about three weeks after a cat fight. One swelling was on the bridge of her nose, and the other was on her dewclaw pad. Tests revealed that both were caused by a rare fungal infection. The dewclaw swelling improved after surgery and treatment with itraconazole, but the nasal swelling kept coming back even after trying different antifungal medications. Now, the cat is on a long-term antifungal treatment to manage the recurring infection.
People also search for: cat skin infection treatment · cat fungal infection nose · cat dewclaw swelling treatment
Abstract
UNLABELLED: CLINICAL PRESENTATION AND DIAGNOSIS: An 11-year-old spayed domestic crossbred cat was presented for two focal lesions affecting the subcutis that developed 3 weeks after a cat fight. Lesions consisted of swelling of the subcutaneous tissues over the bridge of the nose and a focal swelling of the dewclaw pad of the left thoracic limb. Both lesions were attributable to localised infections with the unusual fungal pathogen Microsphaeropsis arundinis, based on direct microscopy of smear cytology, histology, fungal culture, internal transcribed spacer-polymerase chain reaction (ITS-PCR) and sequence analysis of formalin-fixed tissue and colonial material from primary culture. TREATMENT: The dewclaw pad lesion resolved following cytoreductive surgery and a course of itraconazole (50 mg once daily). The nasal bridge lesion was treated in a similar fashion, except that a range of different antifungal agents (itraconazole, fluconazole, posaconazole) were used, administered sequentially. Despite this, the infection recurred on three subsequent occasions, and the cat has been prescribed indefinite azole therapy. PRACTICAL RELEVANCE: This report of a refractory localised infection of the subcutis in an apparently immune-competent cat illustrates the value of using a mycology reference laboratory, and PCR and sequence analysis for organism identification, and the therapeutic potential of new antifungal agents such as posaconazole.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/20193914/