Black yeast-like fungi in skin and nail: It probably matters

D. M. Saunte, B. Tarazooie, M. C. Arendrup, G. S. De Hoog

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    Abstrakt

    Black yeast-like fungi are rarely reported from superficial infections. We noticed a consistent prevalence of these organisms as single isolations from mycological routine specimens. To investigate the prevalence of black yeast-like fungi in skin, hair and nail specimens and to discuss the probability of these species to be involved in disease. Slow-growing black yeast-like fungi in routine specimens were prospectively collected and identified. A questionnaire regarding patient information was sent to physicians regarding black yeast-like fungus positive patients. A total of 20746 dermatological specimens were examined by culture. Black yeast-like fungi accounted for 2.2% (n=108) of the positive cultures. Only 31.0% of the samples, culture positive for black yeast-like fungi were direct microscopy positive when compared with overall 68.8% of the culture positive specimens. The most prevalent species were Phialophora europaea (n=29), Coniosporium epidermidis (n=12), Ochroconis cf. humicola (n=6) and Cladophialophora boppii (n=4). These are not common saprobes and thus less likely to be coincidental colonizers. In 10/30 cases, discolouration of nail/skin had been noticed. A limited number of black yeast-like fungi were repeatedly isolated from routine specimens suggesting that they may play a role in superficial infections or as colonizers.

    OriginalsprogEngelsk
    Sider (fra-til)161-167
    Antal sider7
    TidsskriftMycoses
    Vol/bind55
    Udgave nummer2
    DOI
    StatusUdgivet - 1 mar. 2012

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