Reports of dermatophytosis in reptiles are rare. This report describes the microscopical and immunohistochemical findings in a case of dermatophytosis caused by Trichophyton spp. in a 2-year-old Tenerife lizard (Gallotia galloti) with ulcerative and pustular skin lesions. Microscopically, the lesions were characterized by superficial epidermal pustules containing heterophils with numerous fungal hyphae that stained by periodic acid-Schiff and Grocott's stain. Fungal culture was not performed, but a panel of polyclonal antibodies specific for different fungal genera was applied to tissue sections. These immunohistochemical studies demonstrated reactivity of the hyphae only with antiserum specific for Trichophyton spp.
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