Published in:
Open Access 01-12-2021 | Hyperpigmentation | Commentary
Postinflammatory Papule: A Tentative New Designation for Acne Vulgaris
Published in: Dermatology and Therapy | Issue 6/2021
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A tentative new designation of “postinflammatory papule (PIP)” for acne vulgaris is proposed.
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PIP is defined as brown and dark-brown papules that form from red papules and pustules, resulting in postinflammatory hyperpigmentation (PIH) and scarring.
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We define PIP as transitional eruption between red papules, pustules, and postinflammatory hyperpigmentation (PIH).
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To the best of our knowledge, the concept of PIP has not been described.
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We recommend topical benzoyl peroxide (BPO)/adapalene as treatment for PIP to prevent formation of atrophic scars.
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Further investigation of histopathological findings in PIP is necessary to confirm whether inflammation still exists.
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