[Efficacy of dapsone in disseminated granuloma annulare: a case report and review of the literature\].

Granuloma annulare is a dermatosis of unknown cause that is generally self-limiting and has several clinical forms of presentation. It may be associated with pruritus or present asymptomatically. The disseminated variant of the disease accounts for 15 % of all cases. Most authors consider that the duration of this form is longer and that treatment response is worse than for localized forms. A range of therapeutic options have been tried for this disease with a wide range of outcomes. We present a patient with disseminated granuloma annulare who started treatment with dapsone after several therapeutic failures. With dapsone therapy, her cutaneous symptoms showed a clear improvement without any relevant side effects. We then review reports in the literature of cases of disseminated granuloma annulare treated with dapsone.