title: Erythema dyschromicum perstans. A follow-up study from northern Finand.
abstract: Four patients with ashy dermatosis are described. Their ages varied from 8 to 12 years. Three had typical widespread macular eruptions and one had a linear lesion not described before. The follow-up investigation revealed that the eruption disappeared within 2 years in three of the patients. One patient could not be followed. The duration of the disease and the linearity of one lesion resembled lichen ruber planus.
mesh_terms: D002648:Child; D004890:Erythema / Q000473:pathology*; D005387:Finland; D005500:Follow-Up Studies; D006801:Humans; D008543:Melanins; D010859:Pigmentation Disorders / Q000473:pathology*
chemical_list: D008543:Melanins