Spectrum of Clinical Responses to Therapies in Infantile Bullous Pemphigoid.

Infantile bullous pemphigoid (BP) is a rare autoimmune dermatosis characterized by the presence of antibodies against basal membrane zone proteins. Histologic and immunologic features are similar to those of the adult disease, but its clinical features may vary in children. We report here four cases of infantile BP whose atypical presentation or progression shed new light on the disease.