By Disease Name > Ashy Dermatosis

Erythema Dyschromicum Perstans

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AKA ashy dermatosis
exact relationship to LP uncertain but there are close similarities and both conditions may coexist
vacuolization of the basal layer seems to be the primary histologic event

 

clinical:

macular, ashen-gray-blue hypermelanosis
trunk, face, upper extremities
often Latin or Indian descent

 

histology:  active border shows vacuolar degeneration of the basal cells; pigmentary incontinence
treatment: bleaching creams, topical steroids