folliculitis

An inflammatory reaction in hair follicles; the lesions may be papules or pustules.

- f. abscedens et suffodiens a chronic progressive pustular f. in the scalp.

- f. barbae SYN: tinea barbae.

- f. decalvans 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.

- eosinophilic pustular f. a dermatosis characterized by sterile pruritic papules and pustules that coalesce to form plaques with papulovesicular borders; spontaneous exacerbations and remissions may be accompanied by peripheral leukocytosis, eosinophilia, or both, and may result in eventual destruction of hair follicles and formation of eosinophilic abscesses. The disease has been reported in AIDS, and a possibly separate form of eosinophilic pustular f. occurs in infants. SYN: Ofuji disease.

- f. keloidalis SYN: acne keloid.

- f. nares perforans inflammation of a hair follicle in the nose; the infection extends to, and perforates, the cutaneous surface.

- perforating f. erythematous papules with a central keratin plug that are scattered on the arms, thighs, and buttocks; dermal fibers are seen in biopsies extending into the follicle; similar changes are seen especially in diabetics on hemodialysis. SEE ALSO: hyperkeratosis follicularis et parafollicularis.

- f. ulerythematosa reticulata erythematous “ice-pick” or pitted scars on the cheeks; a scarring type of f., associated with keratosis pilaris and commonly inherited as an autosomal dominant trait.

* * *

fol·lic·u·li·tis fə-.lik-yə-'līt-əs n inflammation of one or more follicles esp. of the hair

* * *

n.

inflammation of hair follicles in the skin, commonly caused by infection. Folliculitis caused by Pityrosporum yeasts may be a marker for the diagnosis of AIDS.

* * *

fol·lic·u·li·tis (fə-lik″u-liґtis) inflammation of a follicle or follicles; usually referring to hair follicles, but sometimes to follicles of other kinds.

Folliculitis.