Linear hyperpigmentation with extensive epidermal apoptosis: a variant of linear lichen planus pigmentosus?

Linear lichen planus pigmentosus and coincidental ipsilateral facial nerve palsy: An unusual observation

“…Less common presentations include zosteriform pattern on the trunk [6], linear unilateral lesion on the extremity [7] and involvement of non sun-exposed areas such as thigh [8]. The cause of LPP is unknown, but an immunologic mechanism mediates its development, as well as that of lichen planus [9].…”

A Case of Linear Lichen Planus Pigmentosus

“…LPP is characterized by mottled or reticulated hyperpig- mented, dark brown macules on the sun exposure skin areas and flexural folds on the face and neck, and the axillae and inguinal regions [1][2][3] .…”

“…Lichen planus pigmentosus (LPP) was first described by Bhutani et al 1 , and this a rare variant of lichen planus, and LPP appears as mottled or reticulated hyperpigmented, dark brown macules or papules on the sun exposed areas and flexural folds 2,3 . Linear lichen planus, which shows a linear distribution following Blaschko's lines, is considered a subtype of lichen planus [3][4][5] .…”

“…Linear lichen planus, which shows a linear distribution following Blaschko's lines, is considered a subtype of lichen planus [3][4][5] .…”

“…Linear LPP is considered as a combined type of linear lichen planus and LPP, and there have been only a few reports on this in the dermatologic literature 3 . Only 3 such cases have been reported in the Korean dermatologic literature 2,7 .…”