Unilateral lichen planus with Blaschko line distribution: A case report

Figure 1 Clinical photographs. A: Violaceous, brownish, polygonal papules on the right abdomen along the Blaschko’s lines; B: Violaceous, brownish papules and plaques distributed along the Blaschko’s lines on the right back and extended to the upper extremity. C: Before treatment, violaceous and red maculae with a size of 1-5 mm were seen on the right lower limb, and maculae papules were partially coalesced into patchy maculae linearly distributed; E: Before treatment, violaceous and red maculae were seen on the right upper limb; D and F: After treatment, the old lesions disappear or only pigmentation patches remain.