pseudopelade

(redirected from pseudopelade of Brocq)

pseudopelade

 [soo″do-pe´lād]
an uncommon type of alopecia characterized by the asymptomatic development of a distinctive scarlike patchy alopecia in adults.

pseu·do·pe·lade

(sū'dō-pĕ-lahd'),
A scarring type of alopecia; usually occurs in scattered irregular patches; of uncertain cause.
[pseudo- + Fr. pelade, disease that causes sporadic falling of hair]

pseu·do·pe·lade

(sū'dō-pĕ-lahd')
A scarring type of alopecia; usually occurs in scattered, irregular patches; of uncertain cause.
[pseudo- + Fr. pelade, disease that causes sporadic falling of hair]
References in periodicals archive ?
Keywords: Dermoscopy, lichen planopilaris (LPP), discoid lupus erythematosus (DLE), pseudopelade of brocq (PB).
In this observational study, we included 18 patients irrespective of age and gender with clinically and histopathologically confirmed cases of lichen planopilaris (LPP), discoid lupus erythematosus (DLE), pseudopelade of Brocq (PB).
Classification of cicatricial alopecia Lymphocytic (i) Discoid lesions of lupus erythematosus (ii) Lichen planopilaris (a) Classic LPP (b) Frontal fibrosing alopecia (c) Graham Little syndrome (iii) Pseudopelade of Brocq (iv) Central centrifugal cicatricial alopecia (v)Alopecia mucinosa (vi) Keratosis follicularis spinulosa decalvans Neutrophilic (i) Folliculitis decalvans (ii) Dissecting cellulitis Mixed cell (i) Acne keloidalis (ii) Acne necrotica (iii) Erosive pustular dermatosis Table 2: Peroxisome proliferator-activated receptors (PPARs) in human skin.
Differentiating between pseudopelade of Brocq and scarring classic LPP can be challenging as they both have multifocal involvement of the vertex scalp although LPP presents more frequently with perifollicular erythema and follicular keratotic plugs than pseudopelade of Brocq [43,114].
Evaluation of inflammatory infiltrate and fibrogenic cytokines in pseudopelade of Brocq suggests the involvement of T-helper 2 and 3 cytokines.
Results In our study, major causes of cicatricial alopecia were lichen planopilaris (27.5%), discoid lupus erythematosus (25%), pseudopelade of Brocq (20%), systemic lupus erythematosus (5%) followed by scleroderma, dermatomyositis, keratosis follicularis spinulosa decalvans, aplasia cutis, kerion, follicular mucinosis, pemphigus, dissecting cellulitis of scalp/ pyogenic folliculitis and acne keloidalis nuchae in 2.5% cases each.
In our study, the maximum number of cases of cicatrical alopecia were due to LPP (27.5%) followed by DLE (25%) and pseudopelade of Brocq (25%).
Pseudopelade of Brocq (PB) is a permanent progressive scarring alopecia characterized by numerous alopecic patches localized only in the scalp, that tend to coalesce into larger, irregular plaques with polycyclic borders.