Erythema multiforme (EM) represents a spectrum of acute, immune-mediated mucocutaneous conditions that predominantly affect the skin and, in many instances, the oral mucosa. Typically presenting with ...

Erythema multiforme. Although most cases of erythema multiforme do not have bullae or crusts, some do. Erythema multiforme major is usually characterized by fewer but larger lesions that tend to have ...