原文：
Pityriasisrosea[1]
Pityriasisroseaisanacuteexanthemthatmaycausepatientsgreatanxietybutisselflimitingandresolveswithinonetothreemonths.Itisadistinctiveerythematousovalscalyeruptionofthetrunkandlimbs,withminimalconstitutionalsymptoms.
Whatcausespityriasisrosea?
Thecauseofpityriasisroseaisuncertainbutepidemiological(seasonalvariationandclusteringin白癜风哪里看的好北京看白癜风哪里医院好