[Universal dermatophytosis (tinea incognito) caused by Trichophyton rubrum].

An 84-year-old male presented with a dermatophyte infection that had spread over nearly the entire body surface. The first signs had developed 48 years before. After treatment with galenic and corticosteroid preparations for diagnoses of "eczema" and "psoriasis", the lesions gradually extended over the body and to the nails. The cutaneous symptoms had worsened in recent year after the patient had started systemic cortisone treatment for bronchial asthma. He also developed diabetes mellitus, papulonodular lesions on the face and limbs, thinning of his hair and eyebrows and hyperkeratosis of the soles and palms.