Erythema multiforme

Definition

Erythema multiforme is an acute, self-limiting skin condition often triggered by infections or medications. It presents with target-like lesions and may involve mucous membranes.

5 Must Know Facts For Your Next Test

1. Erythema multiforme can be induced by urinary anti-infectives like sulfonamides.
2. It is characterized by the abrupt onset of red, target-shaped lesions, primarily on the extremities.
3. Erythema multiforme is often classified into two types: minor (limited to the skin) and major (involving mucous membranes).
4. Herpes simplex virus infections are a common infectious trigger for erythema multiforme.
5. Management includes discontinuing the offending drug and providing supportive care; corticosteroids may be used in severe cases.

Review Questions

• What type of lesions are characteristic of erythema multiforme?
• Which class of urinary anti-infectives can trigger erythema multiforme?
• What are the primary differences between erythema multiforme minor and major?

Related terms

Sulfonamides: A group of antibiotics that can cause adverse reactions like erythema multiforme.

Herpes Simplex Virus: A common viral infection that can trigger erythema multiforme.

Corticosteroids: Medications used to reduce inflammation in severe cases of erythema multiforme.