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Dermatol Ther. 2008 Jul-Aug;21(4):238-44. doi: 10.1111/j.1529-8019.2008.00204.x.

Folliculitis decalvans.

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  • 1Department of Dermatology and Skin Science, University of British Columbia, Vancouver, British Columbia, Canada. ninaotberg@gmx.com


Folliculitis decalvans is a rare inflammatory scalp disorder. The present paper gives a practical approach to diagnosis and patient management and reviews possible pathogenetic factors and treatment options. Folliculitis decalvans is classified as primary neutrophilic cicatricial alopecia and predominantly occurs in middle-aged adults. Staphylococcus aureus and a deficient host immune response seem to play an important role in the development of this disfiguring scalp disease. Lesions occur mainly in the vertex and occipital area. Clinically, the lesions present with follicular pustules, lack of ostia, diffuse and perifollicular erythema, follicular tufting, and, oftentimes, hemorrhagic crusts and erosions. Histology displays a mainly neutrophilic inflammatory infiltrate in early lesions and additionally lymphocytes and plasma cells in advanced lesions. Treatment is focused on the eradication of S. aureus anti-inflammatory agents.

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