Erythema nodosum Flashcards

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1
Q

Erythema nodosum

A
  • inflammation of subcutaneous fat
  • caused by infection, systemic disease, drugs, malignancy
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2
Q

Features of erythema nodosum

A
  • tender, erythematous, nodular lesions
  • occurs over shins (most commonly)
  • usually resolves in 6 weeks
  • lesions heal without scarring
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3
Q

Causes of erythema nodosum

A

infection:
- streptococci
- tuberculosis

systemic disease:
- sarcoidosis
- IBD
- Behcet’s

malignancy or lymphoma

pregnancy

drugs:
- COCP
- penicillins
- sulphonamides

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