Eczema

Question 1

Define eczema herpeticum

Answer 1

Cutaneous infection with HSV on someone with atopic dermatitis

Question 2

Exacerbation factors of AD x4

Answer 2

Dehydration and irritation
Emotional stress
Infections
Allergies

Question 3

Distribution of lesions in infancy x3

Answer 3

Face
Wrists
Extensor surfaces

Question 4

Childhood distribution of eczema x4

Answer 4

Antecubital fossa
Popliteal fossa
Neck and abdomen

Question 5

Adult distribution of eczema x5

Answer 5

Wrists
Flexures
Sides of neck
Face; forehead
Dorsa of hands and feet

Question 6

Differential diagnosis of pityriasis alba x5

Answer 6

Vitiligo
Leprosy
Psoriasis
Contact dermatitis
Seborrheic dermatitis

Question 7

How does stress influence skin diseases

Answer 7

Cortisol production
Dysregulation of the hypothalamic pituitary adrenal axis activity

Question 8

Describe the pathogenesis of Allergic eczema x3

Answer 8

Allergens are expressed to TH2 cells and they produce IL4, 4, 13
This activates eosinophils to produce more interleukins > release of IFN gamma by TH1

Question 9

Aim of atopy patch test

Answer 9

Evaluation of the clinical relevance of multiple IgE mediated sensitizations in patients with AE

Question 10

Purpose of prick test and where on the body is it done

Answer 10

To detect IgE mediated immediate type hypersensitivities
Done on volar forearm

Question 11

Examples of emulsifying ointments for eczema x3

Answer 11

Petrolatum
Liquid paraffin
Lanette wax

Question 12

Side effects of steroids x5

Answer 12

Atopy
Acne
Striae
Hypertrichosis
Telangiectasia