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Erythema multiforme.

T M Stampien1, R A Schwartz

  • 1UMDNJ-New Jersey Medical School, Newark.

American Family Physician
|October 1, 1992
PubMed
Summary

Erythema multiforme is a skin condition causing red, well-demarcated plaques. Triggers include infections and drugs, with treatment varying by severity.

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Area of Science:

  • Dermatology
  • Immunology

Background:

  • Erythema multiforme (EM) is a distinct cutaneous reaction pattern.
  • It presents with characteristic target lesions, indicating a spectrum from mild (EM minor) to severe, life-threatening conditions like Stevens-Johnson syndrome and toxic epidermal necrolysis.
  • Common triggers include herpes simplex virus, Mycoplasma infections, and adverse drug reactions.

Purpose of the Study:

  • To provide a comprehensive overview of erythema multiforme.
  • To discuss its varied clinical presentations, common etiologies, and differential diagnoses.
  • To outline current treatment approaches for different severities of EM.

Main Methods:

  • Review of clinical manifestations and diagnostic criteria for erythema multiforme.
  • Analysis of common triggering factors, including infectious agents and medications.
  • Evaluation of differential diagnoses that mimic erythema multiforme.
  • Summary of therapeutic strategies for mild and severe cases.

Main Results:

  • Erythema multiforme is characterized by target lesions on the trunk and extremities.
  • Herpes simplex virus, Mycoplasma, and drug reactions are the most frequent causes.
  • Differential diagnoses include tinea corporis, lupus erythematosus, Behçet's disease, and others.
  • Mild cases receive supportive care and antibiotics for secondary infections.
  • Severe cases may be treated with systemic corticosteroids, though this is not universally agreed upon.

Conclusions:

  • Erythema multiforme is a significant dermatological condition with diverse presentations and triggers.
  • Accurate diagnosis is crucial for appropriate management, distinguishing it from mimickers.
  • Treatment strategies should be tailored to the severity of the condition, with ongoing debate regarding corticosteroid use in severe forms.

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