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Dermatology > Eczema > Flashcards

Flashcards in Eczema Deck (19):
1

Which group is atopic eczema most common in

Children

2

What factors contribute to eczema

Genetic and environmental
Often involves mutation in the filaggrin gene

3

What is the biggest trigger for an eczema breakout

STress

4

What conditions is eczema related to and why

Asthma and hay fever
Often people with eczema have overreacting Th2 cells that make them sensitive to other triggers

5

What is parakeratosis

Persistence of nuclei in the keratin layer
Cell turnover happens more frequently

6

What would be seen under the microscope in skin with eczema

Spongiosis - oedema between keratinocytes
Inflammatory cell infiltrate

7

what are the general signs of eczema/dermatitis

Itch
ill defined rash
Erythema
Scaly

8

how do you test for contact dermatitis

Patch testing
Often use many patches with different common allergens

9

Describe irritant dermatitis

Very common
Non-specific physical irritation rather than allergic
e.g. excessive soap/water exposure
May be caused by occupation

10

How common is atopic eczema

Affects up to 25% of school aged children

11

What other atopic diseases is eczema associated with

asthma, allergic rhinitis, food allergy

12

What is the normal distribution of atopic eczema

Flexural
In crook of elbow, behind knees etc

13

What are some chronic changes that occur with atopic eczema

Lichenification
Excoriation
Secondary infection

14

What factors are thought to cause/impact eczema

Multiple genetic and environmental factors
-skin barrier function
-environment
-immunology

15

where does photosensitive eczema present

In sun exposed areas
E.g. hands, above collar

16

What is discoid eczema

The erythema and lesions present as well defined circles
Patients are often atopic

17

What is stasis eczema

occurs secondary to increased hydrostatic pressure, oedema and red cells being pushied out of vessels
Dry skin forms over varicosed veins

18

What is the common name for seborrheoic dermatitis

Cradle cap

19

What is pompholyx eczema

spongiotic vesicles form
Commonly on hands