Dermatitis

Question 1

What is Dermatitis “Eczema”? What’s it characterized by?

Answer 1

Epidermal eruptions with marked PRURITIS, indistinct borders, vesicles, juicy papules, erythema, scaling, lichenification that may be localized or diffuse

Question 2

What is Atopic Dermatitis?
What’s the triad?

Answer 2

• Chronic, relapsing, PRURITIC inflammatory condition

TRIAD:
1. Eczema
2. Allergic rhinitis
3. Asthma

Question 3

How does Atopic Dermatitis distribution differ in adults vs. kids?

Answer 3

Adults: FLEXURAL surfaces (antecubital fossa, popliteal fossa), lichenification & scaling predominate

Kids: EXTENSOR surfaces (elbows, knees), papules/vesicles predominate

Question 4

How do you treat Atopic Dermatitis?

Answer 4

• Antihistamines
• Topical/oral steroids
• Dupilimab
• Tralokinumab

Question 5

What is Contact Dermatitis?
What’re the 2 types?
How’re they both treated?

Answer 5

• Inflammation of the skin d/t direct skin exposure to a substance

1. Irritant (direct toxic effect on skin, M/C)
2. Allergic (immune response)

• Topical/Oral steroids

Question 6

Main differences between Irritant & Allergic Contact Dermatitis?

Answer 6

Irritant = more dry, painful/burns

Allergic = more itchy/red

Question 7

How does Acute ICD present?
What about Chronic ICD?

Answer 7

• Acute: erythema, edema, vesicles/bullae, oozing
• Chronic: lichenification, hyperkeratosis, fissuring

Question 8

How does Allergic Contact Dermatitis present?

Answer 8

Well-demarcated, geometric erythema +/- vesicles/bullae (like with poison ivy)

Question 9

What testing can you do to determine allergens that may be causing a pt’s Contact Dermatitis?

Answer 9

Patch testing

Question 10

What’re the 3 types of Idiopathic Eczema?

Answer 10

1. Dyshidrotic -“Tapioca (yellowish) vesicles”, Palms/Soles
2. Xerotic (dry)
3. Nummular “Coin-like”, Trunk/Extremities (legs = M/C)

Question 11

What is Lichen Simplex Chronicus?

Answer 11

Localized chronic dermatitis, pruritis precedes scratching