Which physical findings are characteristic of erythema dyschromicum perstans (EDP)?

Updated: Apr 19, 2019
  • Author: Robert A Schwartz, MD, MPH; Chief Editor: Dirk M Elston, MD  more...
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Answer

Erythema dyschromicum perstans has asymptomatic, gray-blue hyperpigmented patches of variable shape and size and an elevated erythematous border in the early stages (see the image below). The eruption is symmetrically distributed on the face, the trunk, and the upper extremities. The oral cavity and the genitals are spared.

Close-up photograph shows ash-colored macular lesi Close-up photograph shows ash-colored macular lesions and lack of an inflammatory border. Reprint with permission from Cutis 1986; 37: 42-44.

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