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Review
. 2022 May;35(3):320-327.
doi: 10.1111/pcmr.13038. Epub 2022 Mar 31.

A Focused review on the pathophysiology of post-inflammatory hyperpigmentation

Jalal Maghfour  1 , Jadesola Olayinka  2 , Iltefat H Hamzavi  1 , Tasneem F Mohammad  1
Affiliations
Review

A Focused review on the pathophysiology of post-inflammatory hyperpigmentation

Jalal Maghfour et al. Pigment Cell Melanoma Res. 2022 May.

Abstract

Post-inflammatory hyperpigmentation (PIH) is one of the most common disorders of acquired hyperpigmentation. It often develops following cutaneous inflammation and is triggered by various stimuli, from inflammatory and autoimmune conditions to iatrogenic causes and mechanical injuries. While it is well established that an increase in melanin production and distribution within the epidermis and dermis is a hallmark feature of this condition, the exact mechanisms underlying PIH are not completely understood. This article aims to review the current evidence on the pathophysiology of PIH as the cellular and molecular mechanism of PIH represents a promising avenue for the development of novel, targeted therapies.

Keywords: growth factors; mesenchymal-epithelial cross-talk; post-inflammatory hyperpigmentation; skin of color.

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References

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