Balanitis plasmacellularis

Balanitis plasmacellularis (also known as "Balanoposthitis chronica circumscripta plasmacellularis," "Balanitis circumscripta plasmacellularis," "Plasma cell balanitis," "Plasma cell vulvitis," "Vulvitis circumscripta plasmacellularis," "Zoon's balanitis," "Zoon's erythroplasia," and "Zoon's vulvitis") is a cutaneous condition characterized by a benign inflammatory skin lesion characterized histologically by a plasma cell infiltrate.