Pityriasis Alba Questions & Answers

Updated: Apr 03, 2020
  • Author: Sarah Sweeney Pinney, MD, FAAD; Chief Editor: Dirk M Elston, MD  more...
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Questions & Answers

Overview

What is pityriasis alba?

How are pityriasis alba lesions characterized?

What are the variants of pityriasis alba?

What is included in the workup of pityriasis alba?

What are the treatment options for pityriasis alba?

What are the clinical stages of pityriasis alba lesions?

What is the duration of pityriasis alba?

What is extensive pityriasis alba and how does it differ from pityriasis alba?

What should be included in patient education about pityriasis alba?

What is the pathophysiology of pityriasis alba?

What is the pathophysiology of extensive pityriasis alba?

What causes pityriasis alba?

What is the prevalence of pityriasis alba in the US?

What is the global prevalence of pityriasis alba?

In which patient populations is pityriasis alba most common?

What is the prognosis of pityriasis alba?

Presentation

What are the clinical presentations of pityriasis alba?

Which parts of the body does pityriasis alba affect?

What should be the focus of history in the evaluation of pityriasis alba?

Which physical findings suggest pityriasis alba?

How are the lesions of pityriasis alba characterized?

Which body areas are affected by pityriasis alba?

What are variants of pityriasis alba?

How are psoriasis and atopic dermatitis differentiated from pityriasis alba?

DDX

How is leprosy differentiated from pityriasis alba?

Which conditions should be included in the differential diagnoses of pityriasis alba?

How is pityriasis alba differentiated from other disorders with hypopigmentation?

How is extensive pityriasis alba differentiated from classic pityriasis alba?

How is psoriasis differentiated from pityriasis alba?

How is tinea versicolor differentiated from pityriasis alba?

How is vitiligo differentiated from pityriasis alba?

How is progressive and extensive hypomelanosis differentiated from pityriasis alba?

What other conditions should be differentiated from pityriasis alba?

Workup

Which studies are performed in the workup of pityriasis alba?

When is biopsy indicated in the workup of pityriasis alba?

Which histologic findings are characteristic of pityriasis alba?

Treatment

What are the treatment options for pityriasis alba?

What is the role of pharmacologic therapy in the treatment of pityriasis alba?

What is the role of laser therapy in the treatment of pityriasis alba?

Which specialists should be consulted in the treatment of pityriasis alba?

Medications

What medications are used in the treatment of pityriasis alba?

Which medications in the drug class Topical Skin Products are used in the treatment of Pityriasis Alba?

Which medications in the drug class Immunosuppressant Agent are used in the treatment of Pityriasis Alba?

Which medications in the drug class Corticosteroids, topical are used in the treatment of Pityriasis Alba?