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Pityriasis Alba

Reviewed 06/2018
 


BASICS

DESCRIPTION

  • Characterized by one or more poorly marginated, pale pink, or tan/white patches and plaques that commonly appear on the cheeks, neck, and lateral arms of children and young adults

  • Var...

DIAGNOSIS

HISTORY

  • Usually asymptomatic

  • Pruritus (rare)

  • More apparent in summertime in light-skinned people because lesions do not tan in summer (2,3)

  • Even minimal sunlight exposure may cause lesions to re...

TREATMENT

GENERAL MEASURES

The primary objective is to limit triggering factors: reduce sun exposure, use daily sunscreen; in some, decrease bathing frequency or exfoliative/beauty treatments. 

MEDICATION

ONGOING CARE

FOLLOW-UP RECOMMENDATIONS

Patient Monitoring

As needed, only if lesions become symptomatic 

DIET

No special diet 

PATIENT EDUCATION

  • Stress long-term chronicity and likely permanent resolution o...

REFERENCES

1
Miazek N, Michalek I, Pawlowska-Kisiel M, et al. Pityriasis alba—common disease, enigmatic entity: up-to-date review of the literature. Pediatr Dermatol.  2015;32(6):786–791. [View Ab...

ADDITIONAL READING

  • Al-Mutairi N, Hadad AA. Efficacy of 308–nm xenon chloride excimer laser in pityriasis alba. Dermatol Surg.  2012;38(4):604–609.

  • Di Lernia V, Ricci C. Progressive and extensive h...

SEE ALSO

Keratosis, Actinic; Tinea Versicolor; Vitiligo 

CODES

ICD10

L30.5 Pityriasis alba 

ICD9

696.5 Other and unspecified pityriasis 

SNOMED

  • 402296004 Pityriasis alba

  • 402297008 Localized pityriasis alba (disorder)

  • 402298003 Diffuse pityriasis alba (disorder)

CLINICAL PEARLS

  • More common in patients with atopic dermatitis

  • Use of KOH preparation and Wood lamp is a quick way to differentiate this from a fungal infection.

  • Treatment is largely symptomatic, and su...

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