Early target lesions with a central dusky and an outer edematous zone.
Fully developed target lesions with central necrotic crusted zone, edematous zone and outer red zone.
EM. Oral shallow ulcers with a red base on buccal mucosa.
Isomorphic phenomenon (Koebner) at site of antecedent scratch on arm of teen with EM.
CLINICAL FEATURES
The abrupt onset of symmetrical red papules that evolve into diagnostic target lesions characterizes EM.
Target lesions
