Lichen planopilaris

From dermoscopedia

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Description This chapter describes the dermoscopy aspect of lichen planopilaris
Author(s) Anna Waskiel Burnat · Lidia Rudnicka · Adriana Rakowska
Responsible author Anna Waskiel Burnat→ send e-mail
Status unknown
Status update April 4, 2019
Status by Ralph P. Braun


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The most common trichoscopic features of classic lichen planopilaris include the absence of follicular openings, perifollicular scaling and white cicatricial areas. Other common trichoscopic findings are perifollicular erythema, milky-red areas, classic white and blue-grey dots (1, 2) (3).
In frontal fibrosing alopecia, perifollicular scaling, the absence of follicular openings, perifollicular erythema, white cicatricial areas, blue-grey and classic white dots are most commonly observed (1, 2). Milky-red areas are not observed in trichoscopic examination (2).
Perifollicular scaling and perifollicular erythema are considered as markers of disease activity. Perifollicular erythema and white cicatricial areas are associated with disease severity (1).


Trichoscopic Feature Classic lichen planopilaris

Mean frequency in %* (reported prevalence**)

Frontal fibrosing alopecia

Mean frequency in %* (reported prevalence**)

Perifollicular erythema 43 (0 – 88) 68 (0 – 100)
Perifollicular scaling 85 (38 – 100) 84 (42 – 90)
Classic white dots 32 (0 – 100) 13 (0 – 50)
Milky-red areas 33 (14 – 100) Not reported
White cicatricial areas 84 (0 – 100) 26 (20 – 100)
Absence of follicular openings 99 (75 – 100) 82 (52 –100)
Blue-grey dots 32 (0 – 56) 25 (0 – 50)


LPP.jpg

Trichoscopy of lichen planopilaris with presence of perifollicular, white scaling and milky-red areas with absence of follicular openings.