Eczema Flashcards
Define Eczema?
A pruritic papulovesicular skin reaction to endogenous and exogenous agents
What are the different types of Exogenous Eczema?
Irritants (e.g. nappy rash)
Contact (delayed type 4 hypersensitivity reaction to an allergen)
Atopic
What are the different types of Endogenous Eczema?
Atopic Seborrhoeic Pompholyx (a type of eczema that affects the hands and feet) Varicose Lichen Simplex
What is varicose eczema is due to?
Increased venous pressure in lower limbs
What is the epidemiology of Eczema?
Contact - prevalence: 4%
Atopic - onset in first year of life, childhood incidence: 10-20%
What are the presenting symptoms of Eczema?
Itching Heat Tenderness Redness Weeping Crusting
What do we ask about for an Eczema history?
Ask about occupational exposure to irritants (e.g. bleach)
Ask about personal/family history of atopy (e.g. asthma, hay fever)
What are the signs of Acute Eczema?
Poorly demarcated erythematous oedmatous dry scaling patches
Papules
Vesicles with exudation and crusting
Excoriation marks
What are the signs of chronic eczema?
Thickened epidermis
Skin lichenificiation
Fissures
Change in pigmentation
What does Atopic Eczema mainly affect?
Face and Flexures
What are the signs of Seborrhoeic Eczema?
Yellow greasy scales on erythematous plaques
Commonly found on eyebrows, scalp, presternal area
What are the signs of Pompholyx Eczema on physical examination?
Vesiculobullous eruption on palms and soles
What are the signs of Varicose Eczema on physical examination?
Associated with marked varicose veins
What are the signs of Nummular Eczema on physical examination?
Coin shaped, on legs and trunk
What are the signs of Asteatotic Eczema on physical examination?
Dry, Crazy paring pattern
