[Ulcerative Zoon's balanitis].

Zoon's balanitis is a rare genital dermatosis of unknown etiology, usually presenting as a red-orange macule or plaque with a «cayenne pepper» appearance on the glans and/or foreskin. Unfortunately, atypical presentations are not uncommon, including vegetating or ulcerative lesions. Usually, it affects middle-age to older uncircumcised men. Although it is a benign pathology, Zoon's balanitis may be superimposed on another inflammatory or neoplastic dermatosis. As topical treatments are generally non satisfactory and relapses are usual on treatment with-drawal, circumcision remains an interesting option with usually a rapid and complete remission of the symptoms.