Post-traumatic hyperpigmentation: Laser treatment or not ?

Takafumi Ohshiro, Toshio Ohshiro, Katsumi Sasaki, Kazuo Kishi, Yusuke Shimizu

Research output: Contribution to journalArticle

Abstract

Post-traumatic hyperpigmentation (PTH) is a common symptom after skin injuries in Asians. PTH occurs on scars or skin following acute inflammation. PTH is classified into the following three conditions based on the pigmented lesions : an increase of epidermal melanin due to the activation of epidermal melanocytes after inflammation, incontinentia pigmenti histological, and dermal implantation of foreign substances known as a "traumatic tattoo". LLLT and LED irradiation are effective methods for controlling skin inflammation. The increase in epidermal melanins. known as basal hyperpigmentation. gradually disappears within 6-12 months. To shorten the treatment period, topical bleaching ointments such as hydroquinone. tretinoin, and vitamin C as well as IPL/long-pulsed alexandrite laser treatments are available. In the case of incontinentia pigmenti histological, which involves chronic inflammation in the skin, the basement membrane is partially destroyed and epidermal melanins are "dropped" into dermal lesions. These dropped melanins are digested by macrophages, which remain as melanophages in the dermal lesions for several years, and so this type of dermal pigmentation does not disappear spontaneously. Therefore, Q-switched lasers are used for the selective treatment of dermal hyperpigmentation. For the treatment of PTH, personalized, appropriate therapeutic planning based on a precise diagnosis is important.

Original languageEnglish
Pages (from-to)71-80
Number of pages10
JournalJapanese Journal of Plastic Surgery
Volume58
Issue number1
Publication statusPublished - 2015 Jan 1

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Hyperpigmentation
Lasers
Skin
Melanins
Incontinentia Pigmenti
Inflammation
Therapeutics
Skin Pigmentation
Melanocytes
Solid-State Lasers
Ointments
Tretinoin
Basement Membrane
Ascorbic Acid
Cicatrix
Macrophages
Wounds and Injuries

ASJC Scopus subject areas

  • Surgery

Cite this

Ohshiro, T., Ohshiro, T., Sasaki, K., Kishi, K., & Shimizu, Y. (2015). Post-traumatic hyperpigmentation: Laser treatment or not ? Japanese Journal of Plastic Surgery, 58(1), 71-80.

Post-traumatic hyperpigmentation : Laser treatment or not ? / Ohshiro, Takafumi; Ohshiro, Toshio; Sasaki, Katsumi; Kishi, Kazuo; Shimizu, Yusuke.

In: Japanese Journal of Plastic Surgery, Vol. 58, No. 1, 01.01.2015, p. 71-80.

Research output: Contribution to journalArticle

Ohshiro, T, Ohshiro, T, Sasaki, K, Kishi, K & Shimizu, Y 2015, 'Post-traumatic hyperpigmentation: Laser treatment or not ?', Japanese Journal of Plastic Surgery, vol. 58, no. 1, pp. 71-80.
Ohshiro T, Ohshiro T, Sasaki K, Kishi K, Shimizu Y. Post-traumatic hyperpigmentation: Laser treatment or not ? Japanese Journal of Plastic Surgery. 2015 Jan 1;58(1):71-80.
Ohshiro, Takafumi ; Ohshiro, Toshio ; Sasaki, Katsumi ; Kishi, Kazuo ; Shimizu, Yusuke. / Post-traumatic hyperpigmentation : Laser treatment or not ?. In: Japanese Journal of Plastic Surgery. 2015 ; Vol. 58, No. 1. pp. 71-80.
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