MEDizzy - A 26-year-old woman develops discomfort on her lower legs

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Skin Lesions

A 26-year-old woman develops discomfort on her lower legs and notices a skin rash. On examination, there are tender nodules on her shins with an erythematous base. Which of the following conditions is this rash associated with?

Explanation(C) Erythema nodosum is a hypersensitivity vasculitis associated with many infections, drugs, malignancies, and inflammatory conditions (sarcoidosis). The peak age is 20–30 and it occurs more commonly in females. The lesions are rare in children. It is a nodular erythematous eruption, usually on the extensor aspects of the legs, less commonly on the thighs and forearms. It regresses by bruise-like color changes in 3–6 weeks without scarring.