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Article
September 1982

Erythema Dyschromicum Perstans and Lichen Planus

Author Affiliations

From the Department of Dermatology, Yale University School of Medicine, New Haven, Conn.

Arch Dermatol. 1982;118(9):683-685. doi:10.1001/archderm.1982.01650210063021
Abstract

• Erythema dyschromicum perstans (EDP) is a cutaneous pigmentary disturbance originally considered to be a variant of erythema perstans. The nosologic identity of EDP has been challenged repeatedly as the number of patients with concurrent EDP-like eruptions and lichenoid disorders has increased. In this report, we describe a woman who had EDP for two years before the onset of classic lichen planus (LP). The active lesions of LP gradually evolved into typical ashy-gray macules of EDP. This case provides further support for the concept that EDP and EDP-like conditions should be classified, in certain instances, as erythema dyschromicum variants of LP.

(Arch Dermatol 1982;118:683-685)

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