Diagnosis of Atopic Dermatitis

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The diagnosis is based on clinical signs and symptoms and must meet the Hanifin and Rajka diagnostic criteria for atopic dermatitis:  

  • Major criteria. Itching (pruritus), typical morphology and distribution of the lesions, chronic and recurring nature, and a personal or family history of atopy. 

  • Minor criteria. Dry skin (xerosis), dry, scaly skin (ichthyosis), increased immunoglobulin E antibodies (in people with an allergy), tendency toward cutaneous infections, cracked lips (cheilitis), recurrent conjunctivitis, dryness, scales and pale patches (pityriasis alba), amongst others. 

When the diagnosis is unclear, some basic tests are usually carried out: 

Patient with a skin biopsy examined under the microscope

Skin biopsy.  

Arm of a patient undergoing allergy skin testing or Prick test

Skin patch tests, skin prick tests.

Blood collection tube

Blood test.  

What is an allergy?

Consulta toda la información relacionada con Allergy

Read more

Substantiated information by:

Paula Ribó Gonzalez
Sara Gómez Armayones

Published: 15 May 2020
Updated: 15 May 2020

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