Peer-reviewed veterinary case report
Cat with fungal mycetoma nodules on back confirmed by lab tests
By Kano, Rui et al.·Published in Mycoses·2009·View original on PubMed →
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Original publication title: Confirmed case of feline mycetoma due to Microsporum canis.
- Species:
- cat
Plain-English summary
A 9-year-old male Persian cat was brought in with painful lumps on its back that were leaking a thick, yellowish substance. The vet found two large nodules that were inflamed and draining pus, which led to a diagnosis of mycetoma, a type of fungal infection caused by the Microsporum canis fungus. This case is notable because it's the first confirmed instance of this specific fungal infection in cats. Treatment details were not provided, but addressing such infections typically involves antifungal medications and possibly surgical intervention.
People also search for: cat skin lumps · Persian cat fungal infection · mycetoma treatment in cats
Abstract
The first case of feline true mycetoma because of a dermatophyte has been reported in this manuscript, although pseudomycetoma has been described in dogs and cats. The patient was a 9-year-old castrated male Persian cat weighing 4.2 kg with subcutaneous nodules on the dorsal trunk. Physical examination revealed two subcutaneous nodules (2.5 x 5.0 cm and 3.5 x 5.0 cm in size) that drained purulent exudates with cement-like substances containing yellowish granules. The impression smear of the yellowish granules demonstrated by PAS staining that they were masses of fungal septated hyphae (3-4 mum of width). From the nodular inflammation with fibrosis, fistulae draining from deep tissue and many grains containing abundant hyphal filaments, the case was diagnosed as mycetoma, complying with the definitive criteria of mycetoma. The etiologic fungus was molecularly as well as morphologically identified as Microsporum canis.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/18444972/