Summary
Definition
History and exam
Key diagnostic factors
- presencia de factores de riesgo
- lesiones en diana de las extremidades
- episodio anterior de EM
- erosiones mucosas
Other diagnostic factors
- otras lesiones dianiformes
- inicio rápido de las lesiones
- evolución autolimitada
- vesículas agrupadas sobre una base eritematosa
- roncus, estertores y/o sibilancias
- membranas timpánicas rojas
Risk factors
- episodio previo de eritema multiforme
- infección por virus herpes simple (VHS)
- algunas otras infecciones
- Infección por mycoplasma pneumoniae
- linfoma
- Enfermedad de Kawasaki
- uso de determinados medicamentos
- vacunaciones
- tatuajes
Diagnostic tests
1st tests to order
- diagnóstico clínico
Tests to consider
- biopsia con hematoxilina y eosina
- biopsia para inmunofluorescencia
- hemograma completo (HC)
- electrolitos séricos
- serología para virus herpes simple (VHS)
- reacción en cadena de la polimerasa (PCR) rápida
- serología por hemaglutinación en frío
- títulos de M pneumoniae
- radiografía del tórax (RT)
- Títulos de autoanticuerpos
Emerging tests
- anticuerpos antidesmoplaquina
Treatment algorithm
EM menor
EM mayor
EM recurrente
Contributors
Authors
Nathan W. Rojek, MD, FAAD
Assistant Professor
Director, Inpatient Dermatology
Department of Dermatology
University of California, Irvine
Irvine
CA
Disclosures
NWR declares that he has no competing interests.
Acknowledgements
Dr Nathan W. Rojek would like to gratefully acknowledge Dr Areta Kowal-Vern, Dr Jonathan Silverberg, and Dr Nanette Silverberg, the previous contributors to this topic.
Disclosures
AK-V, JS, and NS declare that they have no competing interests.
Peer reviewers
Cristine Radojicic, MD
Staff Physician
Cleveland Clinic
Cleveland
OH
Disclosures
CR declares that she has no competing interests.
Brian Swick, MD
Clinical Assistant Professor
University of Iowa College of Medicine
Iowa City
IA
Раскрытие информации
BS declares that he has no competing interests.
Peer reviewer acknowledgements
BMJ Best Practice topics are updated on a rolling basis in line with developments in evidence and guidance. The peer reviewers listed here have reviewed the content at least once during the history of the topic.
Disclosures
Peer reviewer affiliations and disclosures pertain to the time of the review.
Список литературы
Основные статьи
Lerch M, Mainetti C, Terziroli Beretta-Piccoli B, Harr T. Current perspectives on erythema multiforme. Clin Rev Allergy Immunol. 2018 Feb;54(1):177-84. Abstract
Grünwald P, Mockenhaupt M, Panzer R, et al. Erythema multiforme, Stevens-Johnson syndrome/toxic epidermal necrolysis - diagnosis and treatment. J Dtsch Dermatol Ges. 2020 Jun;18(6):547-53. Abstract
Soares A, Sokumbi O. Recent updates in the treatment of erythema multiforme. Medicina (Kaunas). 2021 Sep 1;57(9):921.Full text Abstract
de Risi-Pugliese T, Sbidian E, Ingen-Housz-Oro S, et al. Interventions for erythema multiforme: a systematic review. J Eur Acad Dermatol Venereol. 2019 May;33(5):842-9. Abstract
Reference articles
A full list of sources referenced in this topic is available to users with access to all of BMJ Best Practice.
Differentials
- Urticaria
- Erupción polimorfa lumínica (PMLE)
- Lupus eritematoso cutáneo subagudo
More DifferentialsGuidelines
- Erythema multiforme
- Diagnosis and treatment of adults with community-acquired pneumonia
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