dermatitis/ eczema Flashcards
what symptoms are present in the acute phase of eczema
papulovesicular erythematous regions, oedema, ooze, scale, crust
what symptoms are present in the chronic phase of eczema
thickening (lichenification), elevated plaques, more scale
is eczema singular gene or multifactorial
multifactorial
what mutation ma be present in eczema
filaggrin
name some types of eczema (11)
contact allergic, contact irritant, atopic, drug related, lichen simplex, photo-induced, stasis dermatitis, seborrheic, pompholyx, discoid,
what is the difference between allergic and irritant contact dermatitis
irritant is a non-autoimmune irritation while allergic is a type 4 delayed hypersensitivity reaction - both in areas of contact
what are common allergies on contact dermatitis
chemicals eg latex, nickel
what test is done for contact dermatitis
patch testing
what can cause irritant contact dermatitis
soap, detergent, nappy rash (urine), lip like chelitis
what are the symptoms of atopic eczema
pruritis, ill-defined erythema, dry skin, flexural distribution, hyper-pigmentation on black skin, atopic disease (asthma, rhinitis, hay fever)
what is the diagnostic criteria for eczema
3+ visible flexure rash, history flexure rash, atopy, dry skin, presented before aged 2
what is eczema herpeticum and how do you treat it
herpes simplex virus infects eczema, monomorphic punched out lesions, IV acyclovir
what are complications of eczema
eczema herpeticum, lichenification, infection (staph A), sleep disturbance –> neurocognitive impairment
what treatments are used in eczema (moderate to severe)
emollients, avoid, antihistamines, (treat infection), topical steroids, phototherapy, systemic immunosuppressants
what causes weeping in eczema
oedema (spongiosis) between keratinocytes
