Flashcards in Eczema Deck (23)
What is seen in eczema?
itchy, ill-defined, erythematous and scaly
What is the common histology to dermatitis?
What is the reaction taking place with contact allergic dermatits?
delayed type HS
Why is there weeping with acute dermatitis?
when there is severe spongiosis, fliud leaks out onto skin surface
What cells in the epidermis process the antigens in contact allergic?
How is contact allergic dermatitis diagnosed?
How long is left before checking for a reaction with contact allergy?
What causes irritant contact?
non-specific physical irritation rather than an allergic reactions
What happens at the nail matrix?
nail plate is manufactured at the proximal nail bed
What are the chronic changes seen with atopic eczema?
What pathogen causes eczema herpeticum?
herpes simplex virus
What does eczema herpeticum look like?
monomorphic punched-out lesions
Where is the rash for eczema found in infants?
cheeks and extensor surfaces
How is eczema herpeticum treated?
IV fluids and IV acyclovir
What is discoid eczema?
well-defined eczema and scale
pts often atopic as well
What is the sign of chronic actinic dermatits/photosensitive eczema?
cut-off at collar
What is stasis eczema secondary to?
red cell extravasation
What other skin problem are pts with oedema at risk at?
How do you differentiate between cellulitis and eczema?
If the rash is bilateral it is more likely to be eczema
What is seborrheoic dermatitis?
a papulosquamous disorder patterned on the sebum-rich areas (scalp, face, trunk)
What is pompholyx eczema?
rapid; spongiotic vesicles with very acute inflammation
In addition to spongiosis, what else is found histologically in drug-related dermatitis?