Mere information ― Dansk

Pityriasis alba er en almindelig og harmløs hudlidelse, der for det meste rammer børn og teenagere. Den forekommer ofte som en mild form af atopisk dermatitis og er hos de fleste mennesker forbundet med allergi. Pityriasis alba viser sig som lyse pletter på huden, typisk i cirkelform eller som ovale områder, nogle gange med let skæl og kløe. Disse pletter findes hyppigst i ansigtet – især på kinderne – samt på armene og overkroppen, og de er mere tydelige hos personer med mørkere hudtoner. I starten kan pletterne være let røde, men de falmer efterhånden til en lysere farve. Soleksponering kan gøre dem mere synlige, hvilket kan bekymre patienter eller forældre, men pityriasis alba forsvinder som regel af sig selv, og hudens normale farve genoprettes. Det kan tage alt fra et par måneder til et par år, selvom de fleste tilfælde klarer sig inden for et år. Behandlingen består typisk af milde cremer og lotioner samt en grundig vejledning af patienten eller forældrene om, at tilstanden ikke er alvorlig.
Pityriasis alba is a prevalent and benign dermatological condition predominantly affecting children and adolescents. The name pityriasis alba derives from its appearance, where pityriasis denotes the fine scales and alba signifies the pale color (hyperpigmentation). This skin disorder is often considered a minor manifestation of atopic dermatitis and is typically associated with a history of atopy in most individuals. Pityriasis alba is characterized by ill-defined macules and patches (or thin plaques), generally circular or oval, often with mild scaling and occasional pruritus (Macules or Patches Observed in Pityriasis Alba). The lesions are usually found on the face, especially the cheeks, arms, and upper trunk, and are more prominent in individuals with darker skin types. Initially, the lesions may exhibit mild erythema and gradually transition to a hypopigmented state over time. Sun exposure can accentuate the appearance of these lesions, which may often raise concerns regarding their cosmetic impact on patients or parents of children. However, pityriasis alba follows a spontaneous, self-resolving course, gradually restoring normal skin pigmentation. The resolution period for pityriasis alba varies from several months to a few years, although most cases typically resolve within 1 year. Treatment for this condition involves reassurance, low-potency topical corticosteroids, and mild emollients as the mainstay.

I primærplejen ses ofte pigmenteringsproblemer. Disse omfatter postinflammatorisk hyperpigmentering (post‑inflammatory hyperpigmentation), melasma, solpletter (sun spots), fregner (freckles) og café au lait‑pletter (café au lait spots).
In primary care, pigmentation problems are often found. These include post-inflammatory hyperpigmentation, melasma, sun spots, freckles, café au lait spots.