[Disseminated inflammatory tinea: An unusual presentation.].

: Tinea incognito represents a new entity caused basically by the careless application of corticosteroidal creams. We present a 71-year-old man with disseminated erythematous and squamous lesions treated with corticosteroid creams for seven months; the clinical aspect worsened and new pustular lesions appeared. The diagnosis of disseminated inflammatory tinea was confirmed by culture, with the growth of Trichophyton mentagrophytes. We comment on the clinical findings and the factors that contribute to spread the process.