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Scarring Alopecia


Often, the early stages of a scarring alopecia will have inflammatory cells around the hair follicles, which, many researchers believe, induces the destruction of the hair follicles and development of scar tissue. However, there is some argument about this among dermatologists, as sometimes a biopsy from a scarring alopecia-affected individual shows very little inflammation.

Scarring alopecia almost always burns out. The bald patches stop expanding and any inflammation, itching, burning, or pain goes away. In this end stage, another skin biopsy usually shows no inflammation around hair follicles. Bald areas usually have no more hair follicles. Sometimes, though, hair follicles, at least those at the periphery of a bald patch, are not completely destroyed and they can regrow, but often all that is left are just a few longitudinal scars deep in the skin to show where the hair follicles once were.

Treatment Options

Scarring alopecia can involve a lot of damage and permanent hair loss. For this reason treatment of scarring alopecia should be quite aggressive. The nature of treatment varies depending on the particular diagnosis. Scarring alopecias that involve mostly lymphocyte inflammation of hair follicles, such as lichen planopilaris and pseudopelade, are generally treated with corticosteroids in topical creams and by injection into the affected skin. In addition, antimalarial and isotretinoin drugs may be used.

For scarring alopecias with inflammation of mostly neutrophils or a mixture of cells, the typical treatment involves antibiotics and isotretinoin. More experimentally, drugs like methotrexate, tacrolimus, cyclosporin, and even thalidomide have been used to treat some forms.

Once a scarring alopecia has reached the burnt-out stage and there has been no more hair loss for a few years, bald areas can be either surgically removed if they are not too big or the bald patches can be transplanted with hair follicles taken from unaffected areas.

Published on March 1, 2010

WebMD Medical Reference from the American Hair Loss Association

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