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Dermatitis (Eczema)

» What is dermatitis and why is it so important?
» What is atopy?
» Why is atopic dermatitis becoming more common?
» What are the diagnostic criteria for atopic dermatitis?
» What is the underlying defect in patients with atopic dermatitis?
» In atopic dermatitis, which comes first - the itch or the rash?
» Why does atopic dermatitis itch?
» Why do people like to scratch an itch?
» Does psychological stress worsen atopic dermatitis?
» Did John Phillip Sousa write the “Atopic March?”
» How does atopic dermatitis present at different ages?
» What physical findings are associated with atopic dermatitis? 
» What factors provoke or exacerbate atopic dermatitis? 
» How can your atopic patients relieve their pruritic agony and discomfort? 
» What is the role of antihistamines in atopic dermatitis?
» Describe the “two-pajamas treatment.”
» Is “hand dermatitis” a specific entity?
» What is pompholyx?
» How can pompholyx be managed?
» Describe the typical presentation of nummular eczema.
» What causes nummular eczema?
» Is there a cure for nummular eczema?
» How does seborrheic dermatitis present in children?
» How does seborrheic dermatitis present in adults?
» What causes seborrheic dermatitis, and with what disease states is it commonly found?
» Discuss the treatment approaches to seborrheic dermatitis. 
» What is an “id” reaction, and what does it have to do with Sigmund Freud?
» What are the most common settings for an id reaction and how should you treat it?
» What do you call dermatitis that covers virtually the whole cutaneous surface?
» How can you determine the cause of a patient’s exfoliative dermatitis?
» What general treatment measures are used to treat patients with exfoliative dermatitis?

 
 
 

Did John Phillip Sousa write the “Atopic March?”

No, but if he did, it would have a lot of scratching, sneezing, and wheezing coming from the percussion section! The atopic march is not music but the subsequent development of allergic rhinitis (70%) and/or asthma (50%) in patients with atopic dermatitis. Filaggrin mutations predispose to airway disease in atopic dermatitis patients. Evidence points to the necessity of epicutaneous exposure to allergens (e.g., dust mites) that cause allergic airway disease in these patients. If infants with atopic dermatitis have good barrier protection, it is likely that the airway disease of the atopic march can be prevented!

Marenholz I: Filaggrin loss-of-function mutations predispose to phenotypes involved in the atopic march, J Allergy Clin Immunol 118(4):866–871, 2006.