Pityriasis Alba — SCE Dermatology MCQ

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EasyPaediatric DermatologyPityriasis AlbaSCE Dermatology

A 30-year-old woman has pityriasis alba. She has multiple ill-defined hypopigmented patches on her cheeks. She has a history of atopic eczema. What is the most appropriate management?

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Correct answer: E — Emollients and sun protection; reassurance that the condition is benign and self-limiting

Pityriasis alba is a common benign condition characterised by ill-defined, slightly scaly, hypopigmented patches on the face (especially cheeks) and sometimes upper arms of children and young adults. It is considered a minor manifestation of atopic eczema/dry skin. The hypopigmentation results from mild post-inflammatory change and is more noticeable in darker skin types. Management is emollients (to address the underlying dry skin) and sun protection (UV exposure increases the contrast between affected and unaffected skin). The condition resolves spontaneously over months to years. Topical calcineurin inhibitors may accelerate repigmentation but are not first-line.

Reference: BAD 2019 Patient Information; NICE CKS