Health / Medical Topics

    Erythema Multiforme

    Definition 1

    A hypersensitivity reaction characterized by the sudden appearance of symmetrical cutaneous and mucocutaneous macular or papular lesions which evolve into lesions with bright red borders (target lesions). The lesions usually appear in the hands, feet, extremities, and face. Symptoms include fever, malaise, sore throat, cough, vomiting, diarrhea, arthralgia, and myalgia. Causes include infections (most commonly herpes simplex virus), drugs (e.g., sulfonamides, anticonvulsants, and antibiotics), malignancies, and collagen vascular disorders. (NCI Thesaurus)

    Definition 2

    A disorder characterized by target lesions (a pink-red ring around a pale center). (NCI Thesaurus/CTCAE)

    Definition 3

    A skin and mucous membrane disease characterized by an eruption of macules, papules, nodules, vesicles, and/or bullae with characteristic "bull's-eye" lesions usually occurring on the dorsal aspect of the hands and forearms. (NLM, Medical Subject Headings)




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