Eczema Flashcards
atopy refers to triad of
- atopic dermatitis (eczema)
- asthma
- allergic rhinitis (hay fever)
clinical features of atopic dermatitis
- dry erythematous skin
- lichenified, itchy, scaly
atopic dermatitis is found on what body parts of infants & toddlers
- cheeks
- extensor surfaces
atopic dermatitis is found on what body parts of older children
- flexor surfaces
presentation of chronic eczema
- less vesicular & exudative
- more scales
- pigmentation & lichenification
- fissures
Tx atopic dermatitis
- remove triggers
- emollients
- soap substitutes
- topical steroids
- calcineurin inhibitors, abx, antihistamines, phototherapy, oral steroids
irritant contact dermatitis happens due to … whereas allergic contact dermatitis is often due
- superficial damage of skin surface allowing deeper penetration
- contact with substance
in adults, irritant contact dermatitis is linked to
profession
in children, irritant contact dermatitis is found
around mouth
clinical features of irritant contact dermatitis
- present at area of contact
- red dry itchy patch
- swelling & blistering
irritant & allergic contact dermatitis tx
- avoid irritant
- emollients
- topical steroids
type of sensitivity reaction in allergic contact dermatitis
type 4 delayed hypersensitivity
common allergens in allergic contact dermatitis
- nickel
- perfumed substance
- hair dye
- plasters
- plants
allergic contact dermatitis is diagnosed thru
patch test
seborrhoeic dermatitis occurs in
- face
- scalp
causes of seborrheic dermatitis
overgrowth of malassezia yeast
eczema generally worsens in what season
winter
appearance of suborrhoeic dermatitis
salmon-pink patches with scales & plaques
seborrheic dermatitis tx
- keratolytics (remove scale)
- topical antifungals
- topical corticosteroids
- topical calcineurin
- medicated shampoo
stasis dermatitis (venous eczema) often affects what part of elderly px
lower legs (venous insufficiency)
explain clinical features of seborrheic dermatitis
- itchy, red, blistered/dry & scaly patches/plaques
- haemosiderin
- atrophine blanche
- lipodermatosclerosis
- champagne bottle
seborrheic dermatitis tx
- reduce swelling
- abx
- topical steroids
- emollient/moisturiser
cause of asteatotic dermatitis in lower legs in elderly
dry skin due to xs washing
appearance of asteatotic dermatitis
crazy-paving with white patches & red lines
tx asteatotic dermatitis
- remove RFs
- emollients/moisturisers
- mild topical steroids
