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Z Derm/Breast/Eyes Conditions Year 3 > Eczema + Atopic Dermatitis > Flashcards

Eczema + Atopic Dermatitis Flashcards

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Dermatology Board Prep flashcards
1
Q

What are different types of eczema?

A
  1. Atopic dermatitis
  2. Contact dermatitis
  3. Discoid dermatitis
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2
Q

What is atopic dermatitis?

A

type of eczema, an inflammatory skin condition

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3
Q

What is contact dermatitis?

A

allergic or irritant skin reaction caused by external agent

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4
Q

When is contact dermatitis common?

A

occupations involving water or wet work such as

  • food industry workers
  • machine operators
  • farmers
  • healthcare professionals
  • cleaners
  • florists
  • beauticians
  • hairdressers
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5
Q

What is the epid eczema?

A
  • common in children (20% of children)
  • affects all ages
  • many people outgrow the conditions after adolescence
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6
Q

What is the epid of atopic dermatitis?

A
  1. common in children (affects 3%)

2. present in early childhood initially involvement of face then flexural limbs

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7
Q

When do people get atopic dermatitis?

A
  1. genetics
  2. environment
  3. may be PMHx or FHx of atopic triad conditions
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8
Q

What is the atopic triad?

A
  1. Atopic dermatitis
  2. Allergic rhinitis (allergies)
  3. Asthma
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9
Q

What is symptoms and signs of contact dermatitis?

A
  1. Confined to one area
  2. Acute (24-48h after contact)
  3. Pruritus
  4. Burning
  5. Erythema
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10
Q

What are symptoms of atopic dermatitis?

A
  1. Dry
  2. Pruritic skin
  3. Chronic relapsing course
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11
Q

What are acute eruptions of atopic dermatitis characterised by?

A
  1. erythematous lesions that are itchy and dry

2. can lead to excoriations, fissures and infections

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12
Q

What areas are typically involved for atopic dermatitis?

A

flexures (particularly wrist, ankles, antecubital fossa and popliteal fossa)

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13
Q

What are possible DDx for eczema and atopic dermatitis?

A
  1. Seborrhoeic dermatitis
  2. Irritant contact dermatitis
  3. Allergic contact dermatitis
  4. Scabies
  5. Psoriasis
  6. Mycosis fungoides
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14
Q

What investigations are needed for contact dermatitis?

A

patch testing conducted to identify the allergen

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15
Q

What investigations are needed for atopic dermatitis?

A

IgE - RAST (atopic dermatitis): radioallergosorbent test detects specific IgE antibodies
but mostly clinical diagnosis

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16
Q

What is the 1st line treatment for eczema and atopic dermatitis?

A

1st line: emollients

  • Intermittent topical corticosteroids
  • Topical or oral antibiotic therapy
17
Q

What is the 2nd line treatment for eczema and atopic dermatitis?

A

2nd line: systemic immunosuppressive agent

18
Q

What are complications for eczema and atopic dermatitis?

A
  1. Psychological stress
  2. Systemic adverse effects of topical corticosteroids
  3. Systemic adverse effects of ciclosporin
19
Q

What are prognosis for eczema and atopic dermatitis?

A

60% of children will have symptom resolution as they enter puberty, but relapse may occur in 50%

20
Q

What are subtypes of eczema?

A
  1. atopic dermatitis
  2. contact dermtitis
  3. discoid dermatitis
  4. seborrheic dermatitis
  5. eczema herpeticum
  6. Dyshydrotic aka pompholyx
21
Q

Is eczema autoimmune?

A

NOO

22
Q

What gene mutation is associated with eczema?

A

Filaggrin gene mutation

23
Q

What type of reaction is atopic dermatitis?

A
  1. Type I/IV hypersensitivity
  2. (Ig-E mediated)
  3. Flexures
24
Q

What type of reaction is contact dermatitis?

A 
1. Type IV hypersensitivity
(delayed)
2. Often nickel/latex
3. Two types:
Irritant and allergic
25
Q

What is discoid dermatitis like?

A
  1. Middle-aged/elderly

2. Coin-shaped plaques

26
Q

What is seborrheic dermatitis?

A
  1. Yellow, greasy scaly rash

2. Distribution: eyebrows, nasolabial, scalp (cradle cap)

27
Q

What is eczema herpeticum?

A
  1. MEDICAL EMERGENCY
    (Can disseminate)
  2. Superimposed HSV-1
28
Q

What is Dyshidrotic (AKA pompholyx)?

A
  1. Itchy/painful blisters
  2. Distribution:
    palms + plantars
    (i.e. hands + feet)
29
Q

What is the different between skin patch and skin prick testing?

A

Skin patch testing and skin prick testing not same (skin prick for food allergy)

30
Q

What is chronic treatment for eczema?

A

emollients with low potentency corticosteroids

31
Q

What is buzz word for eczema?

A

lichenification

Z Derm/Breast/Eyes Conditions Year 3 (25 decks)

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