[Granuloma annulare: apropos of 18 cases]. / Le granulome annulaire: à propos de 18 observations.

Granuloma annulare is a benign skin disorder which cause is unknown. The aim of this work is to report the results of a retrospective study dealing with 18 cases of granuloma annulare carried in the dermatology department of la Rabta hospital over a nine year period. We describe 3 clinical forms: localized granuloma annulare: 9 cases, generalized granuloma anulare: 7 cases and deep granuloma annulare: 2 cases. Diabetes mellitus was associated to granuloma annulare in 6 patients, from which 3 presented with multiple lesions. Corticosteroids were used topically in 11 cases. The outcome was marked by a partial resolution in 15 cases. In our study. We didn't found any malignancy with our granuloma annulare patients.