Ann Dermatol.  2014 Oct;26(5):636-638. 10.5021/ad.2014.26.5.636.

Two Cases of Unilateral Lichen Planus Following the Lines of Blaschko

• Yayla D
• Kulcu Cakmak S
• Oguz ID
• Gonul M
• Ozhamam E
• Colak A
• Gul U

• KMID: 2265504
• DOI: http://doi.org/10.5021/ad.2014.26.5.636

Abstract

A 50-year-old man and 71-year-old woman presented to our clinic with unilateral, linear, erythematous, pruritic lesions along the lines of Blaschko. On the basis of clinical and histopathological findings, the lesions were diagnosed as lichen planus with a Blaschkoian distribution, which is a rare form of lichen planus. The patients were treated with topical corticosteroids and antihistamines.

Keyword

Blaschko; Lichen planus

MeSH Terms

Adrenal Cortex Hormones
Aged
Female
Histamine Antagonists
Humans
Lichen Planus*
Middle Aged
Adrenal Cortex Hormones
Histamine Antagonists

Figure

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  Fig. 1 Unilateral linear papules on the right arm.

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  Fig. 2 Orthokeratosis, wedge-shaped hypergranulosis, lichenoid band-like lymphohistiocytic infiltrate at the dermoepidermal junction, and dyskeratotic keratinocytes (H&E, ×100).

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  Fig. 3 Unilateral linear papules on the left side of the body including the left leg and arm.

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  Fig. 4 Orthokeratosis, wedge-shaped hypergranulosis, lichenoid band-like lymphohistiocytic infiltrate at the dermoepidermal junction, eosinophil infiltration, and dyskeratotic keratinocytes (H&E, ×40).

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  Fig. 5 Orthokeratosis, wedge-shaped hypergranulosis, lichenoid band-like lymphohistiocytic infiltrate at the dermoepidermal junction, eosinophil infiltration, and dyskeratotic keratinocytes (H&E, ×200).

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