5-Minute Clinical Consult: Erythema Nodosum

Erythema Nodosum

Prognosis

Individual lesions resolve over 3–6 weeks.
Total time course of 6–12 weeks, but may vary with etiologic disease, if present
Joint aches and pains may persist for years.
Lesions do not scar.
≥1 recurrences in 12–14% of cases:
- Occur over variable periods, averaging several years
Seen most often with sarcoid, streptococcal infection, pregnancy, and oral contraceptives

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