Prevalence of Malassezia spp. yeasts in feline nail folds: a cytological and mycological study
2007
Colombo, Silvia | Nardoni, Simona | Cornegliani, Luisa | Mancianti, Francesca
Malassezia spp. yeasts are commensal organisms of mammal and avian skin, but little is known about their presence on the skin of healthy cats. The purposes of this study were to evaluate the prevalence of Malassezia spp. yeasts in feline nail folds and to identify the different species. Forty-six cats of different breeds were evaluated by cytological examination, and Malassezia spp. yeasts were seen in 61% of them. Yeasts were found in 100% of Devon Rex cats [mean 8.63/oil immersion field (high-power field - HPF)]. Conversely, only 42% of cats of other breeds (domestic short-haired and Persian) were positive (mean 0.59/HPF). Twenty-one cats of different breeds were subsequently evaluated by fungal culture. Malassezia pachydermatis was isolated from 52%, M. furfur from 38%, and M. sympodialis from 9.5% of the cats. More than one species was observed in eight of 21 cats, six of which were Devon Rex. Malassezia spp. yeasts are common inhabitants of feline nail folds, especially in Devon Rex cats, and the presence of a high number of yeasts on cytology correlates with the clinical observation of brown, greasy material in the nail folds. M. pachydermatis and two lipid-dependent species were isolated from both Devon Rex cats and cats of other breeds.
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