• Mycoses · Jan 2007

    Case Reports

    Tinea faciei incognito due to Trichophyton rubrum as a result of autoinoculation from onychomycosis.

    • Pietro Nenoff, Claudia Mügge, Jürgen Herrmann, and Ulrike Keller.
    • Laboratorium für medizinische Mikrobiologie, Mölbis, Germany. nenoff@mykologie-experten.de
    • Mycoses. 2007 Jan 1; 50 Suppl 2: 20-5.

    AbstractThe localisation of a dermatophytosis on the face is rare. Differential diagnoses include a broad range of dermatological disorders, e. g. contact dermatitis, psoriasis vulgaris, seborrhoeic dermatitis, demodicosis, and polymorphic photo eruptions. Two patients suffering from tinea faciei incognito caused by Trichophyton rubrum are presented. Diagnosis was based on mycological diagnostics of skin scrapings using Calcofluor preparation and cultivation of the causative dermatophyte. Both patients were suffering from tinea pedis and tinea unguium caused by the same dermatophyte species. An infection caused by Trichophyton rubrum of the face always occurs following autoinoculation from a pre-existing tinea pedis and tinea unguium of feet and toenails, sometimes of the fingernails.

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