Table 1.

Reported cases of lichen planopilaris on the areas beyond the scalp

Author, year	Patients, n	Clinical features		Histopathological findings	Dermoscopic examination	Therapy	Outcome
		Scalp lesion	Non-scalp lesion (n)
Miteva et al. [15], 2010	2	FFA	Acute patchy hair loss on the limbs	Concentric fibroplasia and follicular lymphocytic interface changes with vacuolar degeneration	NA	NA	NA
Chew et al. [14], 2010	10	FFA	Upper limb alopecia	Perifollicular lymphocytic infiltrate with interface change and perifollicular fibrosis, dermal fibrotic tract	NA	NA	NA
László [6], 2014	1	LPP (GLPLS)	Follicular dark red adherent tiny papules, axillary and pubic alopecia	Perifollicular lymphocytic infiltrate with focal vacuolar alteration	NA	NA	NA
Vendramini et al. [2], 2017	1	None	Isolated body hair loss on the limbs	Perifollicular lichenoid inflammation and scarring	Perifollicular erythema, discrete perifollicular scaling and broken hairs	Doxycycline 100 mg daily and topical clobetasol	Pruritus improved
Arshdeep et al. [5], 2018	4	LPP or FFA	Patchy alopecia of trunk, limbs, or eyebrows (4)	Lichenoid folliculitis and follicular scarring	Broken hairs, peripilar casts in active disease	NA	NA
			Facial papules (2)	Vellus hair LPP	Loss of vellus hairs
			Generalized KP-like papules (1)	Lichenoid folliculitis and follicular destruction	Peripilar casts, gray-brown discoloration of follicular ostia, broken hairs
Present case	1	LPP	Generalized comedone-like keratotic papules	Perifollicular lymphocytic infiltrate with lichenoid reaction and dilated follicles	Perifollicular scaling with gray-brown dots	Hydroxychloroquine 200 mg daily, isotretinoin 10 mg daily and topical desoximetasone 0.25%	Slightly improved

FFA, frontal fibrosing alopecia; GLPLS, Graham-Little-Piccardi-Lasseur syndrome; KP, keratosis pilaris; LPP, lichen planopilaris; n, number of patients; NA, data not available.