Dermatitis

Question 1

Epidemiology

Answer 1

Eczema 3.5% of the population

Question 2

Atiology

Answer 2

Genetic/enviromental
Can be atopic, allergic, irritant contact or sebborheic

Dermatitis or eczema?
eczema = atopic dermatitis
Eczema also used for chronic dermatitis

dry skin, contact with a particular substance, certain drugs, varicose veins, constant scratching, and fungal infections

Question 3

Pathogenesis of dermatitis

Answer 3

inflammation of the upper layers of the skin, causing itching, blisters, redness, swelling, and often oozing, scabbing, and scaling.

Characteristic = e.g. Psoriatic, lichenoid
Infective =Bacteria, viruses, fungi etc.
Non-specific = Eczematous dermatitis

Eczema/Atopic Dermatitis= type 1 hypersenstivity reaction, IgE.

Contact Dermatitis - 2 types/ irritant or allergic

asteatotic eczema - older dry skin becomes
seborrhoeic dermatitis - yeast in sebum/nt infectious
statis dermatitis - varicose veins/ oedema
photocontact -
photophobic
neurodermatitis - from behaviour-tick

Question 4

natural history

Answer 4

can be self limiting/constant/recurrent

Question 5

Clinical Manifestations

Answer 5

potentially infectious depending on reason

Question 6

Symptoms

Answer 6

vary with different forms of the condition.
Range from

Although every type of dermatitis has different symptoms, there are certain signs that are common for all of them, including redness of the skin, swelling, itching and skin lesions with sometimes oozing and scarring

Question 7

Signs

Answer 7

skin rashes
bumpy rashes
including blisters.
skin lesions with sometimes oozing and scarring

Question 8

Complications

Answer 8

infection, disfiguring

Question 9

Prognosis

Answer 9

treatable but not curable.

Atopic - antihistamine