The onset of this condition is explosive. It is characterized by skin and mucosal lesions. The skin lesions are referred to as target, iris, or bull's eye lesions. The mucosal lesions affect the buccal mucosa, lips, and tongue and appear as superficial ulcerations. The lip lesions are ulcerated, encrusted, and bloody. On the basis of this description, which condition is suspected?

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The skin lesions of erythema multiform are described as target, iris, or bull's eye lesions. The mucosal lesions are superficial ulcerations. The lip lesions are bloody and encrusted. In lichen planus, skin lesions are 2- to 4-mm papules. In contact dermatitis, skin lesions result from direct contact with the allergen. The lesions may be erythematous with swelling and vesicles. In SLE, the most classic skin lesion appears on the face and is described as a butterfly rash. The erythematous rash involves the cheeks and the bridge of the nose.

The Onset of This Condition Is Explosive