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Image Number 1790 (Erythema dyschromicum perstans)


Diagnosis: Erythema dyschromicum perstans

Site: Trunk

Sex: M

Age: 27


Description: Slate-grey pigmentation.

Submitted by: Nameer Al-Sudany

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Differential Diagnosis


A young adult man presented with a one year history of an asymptomatic wide spread macular slate-grey hyperpigmentation involved mainly the torso. It was not associated with any cutaneous or systemic disease. Some consider erythema dyschromicum perstans which is also known as Ashy dermatosis as a macular variant of lichen planus.

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