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Dermatitis and eczema are often synonymous. In clinical practice, eczema is usually reserved for atopic dermatitis.
Eczema (also known as atopic eczema or atopic dermatitis)
- is a common and chronic, relapsing inflammatory skin
disorder, characterised by intense pruritus and excoriation, with
erythematous, xerotic, lichenified, fissured skin, and increased risk
of skin infection
- eczema can develop on any area of
skin - however different distribution patterns are often observed at different
stages of life
- in children younger than two years of age, eczema
typically arises on the face, trunk, and limbs including the extensor
surfaces
- in older children and adults, involvement of the neck and
flexural aspects of the limbs (on the inside of joints, such as behind
the knees and in the elbow creases) is common, as is involvement
of the hands
- severity and extent of eczema are extremely
variable, ranging:
- from mild eczema, with localised, occasionally
dry, mildly scaly patches;
- moderate eczema, with slightly more
redness and swelling, with little or no oozing or crusting;
- severe,
generalised involvement of the whole body, resulting in acute skin
failure with widespread, red, oozing, secondarily infected lesions
- both objective signs of eczema and subjective symptoms, such
as itch and sleeplessness, contribute to the assessment of clinical
severity
Characteristic features include:
- itch
- hot red skin
- oedema in acute condition
- oozing and weeping
- crusting in the acute phase
- fissuring and scaling in the chronic phase
- excoriation:
- due to scratching
- there may be secondary thickening or lichenification
- secondary infection
- impairment of thermoregulation because of an increase in blood flow to the skin
Reference:
Last edited 10/2020 and last reviewed 03/2021
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