Linear IgA dermatosis: An unusual case involving the oral mucosa and possible association with perindopril therapy

Background: Linear IgA dermatosis (LAD) is an autoimmune cutaneous bullous disorder characterized by IgA antibodies directed towards various basement membrane antigens. A significant percentage of patients have mucosal involvement. Cicatricial pemphigoid is another bullous disorder with predilection for mucous membranes and is characterized by linear IgG and C3 deposits along the basement membrane zone. Occasionally, IgA is the only …