Follicular Lichen Planus (Lichen Planopilaris)

Update on primary cicatricial alopecias

“…On the basis of variant clinical and pathologic findings, the so-called Graham-Little syndrome (also known as Graham-Little-Piccardi-Lassueur syndrome) has been alternately classified as a form of lichen planopilaris, [160][161][162] keratosis pilaris atrophicans, 5,9 and a distinct nosologic entity. 121 It is an uncommon condition of adults, 9,10,121 characterized by patchy cicatricial alopecia of the scalp, nonscarring alopecia of the axillary and pubic areas, and grouped spinous follicular papules that resemble lichen spinulosus or keratosis pilaris on the trunk and extremities.…”

Lichenoid folliculitis: A unifying concept

“…He determined that it was more fitting as GLPL and proposed that the terms “lichen spinulosus et folliculitis decalvans” and “lichen planus et acuminatus atrophicans” were actually LPP. In 1953, Silver et al analyzed 105 cases of LPP and concluded that while patients may variably present with lesions of lichen planus, spinous lesions and cicatricial alopecia of the scalp, the complete triad is not essential for a diagnosis of LPP. He felt that the histopathologic presentation of lichen planus involving the follicular and perifollicular area defines LPP, and hence proposed that these entities be identified as “lichenoid folliculitis.”…”

“…As Silver et al have noted, overlapping clinical features exist within the LPP subgroup, blurring the distinctions between these entities. Reports in the literature reveal findings of nonscarring alopecia in regions such as the axillae, eyebrows, pubic area and/or extremities, as well as follicular papules on the trunk and/or extremities in LPP (Figure ) and FFA 61‐70 .…”

“…Skin diseases presenting with keratotic papules, atrophy, cicatricial alopecia, and/or “lichenoid” histopathologic changes have been described under a bewildering variety of names, and the controversial nomenclature of these entities has vexed dermatologists for over a century. A review of the subject in 1953 identified “some 30 titles.” Because these conditions overlap clinically and histologically, we propose that the term lichenoid folliculitis (LF) be used to refer to this constellation of diseases. This would simplify cumbersome nomenclature and highlight the possibility of shared pathogenesis and treatment options.…”

“…A review of the subject in 1953 identified "some 30 titles." 1 Because these conditions overlap clinically and histologically, we propose that the term lichenoid folliculitis (LF) be used to refer to this constellation of diseases. This would simplify cumbersome nomenclature and highlight the possibility of shared pathogenesis and treatment options.…”