Atopic Dermatitis is an eczematous rash with a preference for the flexures.

ATOPIC DERMATITIS

Atopic dermatitis (AD) is a common eczematous rash affecting children with an inherited tendency toward dry skin, allergies, asthma and hay fever. It is caused by both a defective skin barrier function and allergy to a wide variety of environmental and dietary allergens. IgE levels tend to be high.

• AD affects about 10% of US children.
  
• Approximately 60% of affected children develop an eczema in the first year of life and 90% are diagnosed by age 5.
• AD is often diagnosed prior to the development of asthma, allergic rhinitis, and food allergy, forming a classic atopic march.
• AD diagnosis prior to age 1 is associated with a significantly higher rate of developing the atopic quadrad of AD, asthma, allergic rhinitis, and food allergy when compared to those diagnosed after 1 year of age.

Glazed cheeks

Hertoghe Sign. Loss of the lateral eyebrow from rubbing (Hertoghe's sign) is one of the stigmata of AD. Chronic scratching is the cause.

Atopic Dermatitis of the body in a child.

Atopic Dermatitis on the neck of an adult.

Thickened skin from scratching AD in the popliteal fossa of a child.

Atopic Dermatitis of the neck.

RegionalDerm

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