Abstract:
:Postinflammatory hyperpigmentation (PIH) is a reactive hypermelanosis and sequela of a variety of inflammatory skin conditions. PIH can have a negative impact on a patient's quality of life, particularly for darker-skinned patients. Studies show that dyschromias, including PIH, are one of the most common presenting complaints of darker-skinned racial ethnic groups when visiting a dermatologist. This is likely due to an increased production or deposition of melanin into the epidermis or dermis by labile melanocytes. A variety of endogenous or exogenous inflammatory conditions can culminate in PIH and typically most epidermal lesions will appear tan, brown, or dark brown while dermal hypermelanosis has a blue-gray discoloration. Depigmenting agents target different steps in the production of melanin, most commonly inhibiting tyrosinase. These agents include hydroquinone, azelaic acid, kojic acid, arbutin, and certain licorice (glycyrrhiza) extracts. Other agents include retinoids, mequinol, ascorbic acid (vitamin C), niacinamide, N-acetyl glucosamine, and soy, and these products depigment by different mechanisms. Certain procedures can also be effective in the treatment of PIH including chemical peeling and laser therapy. It is important to note that these same therapeutic modalities may also play a role in causing PIH. Lastly, those lesions that are not amenable to medical or surgical therapy may experience some improvement with cosmetic camouflage.
journal_name
Am J Clin Dermatoljournal_title
American journal of clinical dermatologyauthors
Callender VD,St Surin-Lord S,Davis EC,Maclin Mdoi
10.2165/11536930-000000000-00000subject
Has Abstractpub_date
2011-04-01 00:00:00pages
87-99issue
2eissn
1175-0561issn
1179-1888pii
1journal_volume
12pub_type
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journal_title:American journal of clinical dermatology
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journal_title:American journal of clinical dermatology
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journal_title:American journal of clinical dermatology
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journal_title:American journal of clinical dermatology
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journal_title:American journal of clinical dermatology
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journal_title:American journal of clinical dermatology
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journal_title:American journal of clinical dermatology
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pub_type: 杂志文章,评审
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pub_type: 杂志文章,meta分析
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更新日期:2001-01-01 00:00:00
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journal_title:American journal of clinical dermatology
pub_type: 杂志文章,评审
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journal_title:American journal of clinical dermatology
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