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Article
March 1987

Unilateral Lichen Planus: An Unusual Presentation

Author Affiliations

Department of Dermatology University of Michigan Medical Center 1500 E Medical Center Dr Ann Arbor, MI 48109-0314

Arch Dermatol. 1987;123(3):295-296. doi:10.1001/archderm.1987.01660270027005
Abstract

To the Editor.—  Lichen planus (LP) was first reported by Wilson1,2 in 1869. Several clinical variants of LP are now recognized. We describe a case of unilateral LP, stopping abruptly at the midline, which, to our knowledge, has not been previously reported.

Report of a Case.—  A 61-year-old man was seen with a pruritic eruption of eight months' duration that began on his left arm at the site of application of nitroglycerin patches. Over the next few months the eruption spread to involve his left upper and lower extremities, and the left side of his trunk. He had no history of skin disease. His medical history was only significant for angina pectoris, for which he was being treated with the topical nitroglycerin.At the time of presentation, our patient had linear violaceous plaques with mild scaling and slight hyperpigmentation on the left extremities and left side of the trunk (Fig 1). The lesions extended to

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