The Evolving Nomenclature of Erythema Ab Igne

Erythema ab igne (EIA) presents as a reticulated hyperpigmented erythematous eruption at sites of prolonged heat exposure. While primarily asymptomatic and self-resolving after removal of the heat source, some chronic cases may require topical therapies such as retinoids for improvement of skin discoloration or 5-fluorouracil if dysplastic changes are present. Though rare, few cases may also progress to cutaneous malignant neoplasms, such as squamous cell and Merckel cell carcinoma.

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