[Case for diagnosis. Granuloma trichophyticum (Majocchi's granuloma)].

Caucasian male patient, 43 years old, presented two years ago with one single lesion in the right knee, in addition to desquamation in the plantar region. Direct mycological exam of the plantar damage showed filaments of dermatophytes, but it was negative for the knee injury. However, histopathology of the area showed presence of foreign body granuloma with hyphae of dermatophytes, confirming the diagnosis of Majocchi's granuloma.