Abstract:A thirty-year-old patient presented with an erythematous papule on the left nostril evolving for ten months. A clinical examination revealed an infiltrated, erythematous, well-limited plaque with a raised border, covered with multiple open and closed comedones. On dermoscopy, there was an erythematous background with some fine telangiectasias and horny plugs at the follicular orifices. A skin biopsy was performed, revealing orthokeratotic hyperkeratosis sinking into the follicular orifices dilated by sebum clu… Show more
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