Dermatitis/Eczema

Question 1

define

Answer 1

inflammation of the skin

Question 2

presentation

Answer 2

itchy, ill-defined, erythematous, scaly lesions
flexor surfaces
assocaited atropy

Question 3

chronic features of eczema

Answer 3

lichenified
excoriation
infection

Question 4

associated atopy

Answer 4

asthma
rhinitis
hay-fever
food allergies

Question 5

diagnosis

Answer 5

patch testing (48 hours then checked after 96- warn about showering)
skin prick
IgE bloods

Question 6

management

Answer 6

emollients
topical steroids
phototherapy UVB
systemic immunosuppression, targeted biological agents

Question 7

what is contact allergic dermatitis

Answer 7

delayed type 4 reaction in response to chemicals, topicals, etc.

Question 8

what is contact irritant dermatitis

Answer 8

caused by trauma e.g. soap and water (implications for occupation)

Question 9

what is atopic dermatitis

Answer 9

caused by genetics (filaggrin), immunological (IL-4, IL-13) and environment

Question 10

what is drug related eczema

Answer 10

type 1 or 4 reaction

Question 11

what is photo-induced/sensitive

Answer 11

reactions to UV light/ phototoxic drugs

Question 12

what is lichen simplex

Answer 12

scratching (can occur in other conditions asides from eczema)

Question 13

what is stasis dermatitis

Answer 13

hydrostatic pressure, oedema and red cell extravasation

Question 14

what causes eczema herpeticum

Answer 14

herpes simplex virus

Question 15

presentation of eczema herpeticum

Answer 15

monomorphic punched-out lesions

Question 16

other forms of eczema

Answer 16

discoid (single, well-demarcated lesion), seborrheic and pomphyolyx (hands and feet)