folliculitis decalvans


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fol·lic·u·li·tis de·cal·'vans

a papular or pustular inflammation of the hair follicles of the scalp, of unknown cause, seen mostly in men, resulting in scarring and loss of hair in the affected area.

fol·lic·u·li·tis de·cal·vans

(fō-lik'yū-lī'tis dē-kal'vanz)
A papular or pustular inflammation of the hair follicles of the scalp seen mostly in men, resulting in scarring and loss of hair in the affected area.

folliculitis decalvans

Purulent follicular inflammation of the scalp resulting in permanent irregular alopecia and scarring. This rare disease occurs mostly in men. The cause is unknown.
See also: folliculitis
References in periodicals archive ?
of Patients 1 Pruritic papular rash 25 2 Scabies 15 3 Folliculitis/furunculosis 14 4 Tinea (dermatophytosis) 13 5 Xerosis/ichthyosis 13 6 Seborrhoeic dermatitis 12 7 Drug rash 11 8 Herpes zoster 5 9 Molluscum contagiosum 3 (nongenital) 10 Non healing ulcer due to furuncle 2 11 Impetigo 2 12 Dermatitis cruris pustulosa et 2 atrophicans 13 Folliculitis decalvans 2 14 Leprosy 2 15 Addisonian pigmentation 2 16 Lichen planus 2 17 Psoriasis 1 18 Vitiligo 1 19 Phytodermatitis 1 20 Asteatotic eczema 1 21 Warts (nongenital) 1 22 Herpes labialis 1 23 Pityriasis versicolor 1 24 Sporotrichosis 1 25 Keratolysis exfoliativa 1 26 Erythroderma 1 27 Miliaria pustulosa 1 28 Neurofibromatosis 1 29 Erythema nodosum 1 Total 138 Table 7: Oral Mucosal Diseases Sl.
Underlying differences in follicular anatomy or host response play an important role in determining which reaction pattern occurs in an affected individual; This theory states that the development of atrophy with loss of hair structures (in folliculitis decalvans) or of hair tufts (in tufted folliculitis) depends upon the depth and destructive potential of the inflammatory process (6).
Tufted folliculitis of the scalp: a distinctive clinicohistological variant of folliculitis decalvans. British Journal of Dermatology 138.5 (1998): 799-805.
The histopathology of folliculitis decalvans is characterized by patchy pustular alopecia with areas of scarring with pustules at periphery.