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Dermatology > Eczema & Psoriasis > Flashcards

Eczema & Psoriasis Flashcards

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Dermatology Board Prep flashcards
1
Q

What does eczema mean

A
  • red scaly eruption
  • includes: atopic, seborrheic, contact dermatitis, nummular and dishidrotic eczema
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2
Q

Signs and symptoms of acute dermatitis

A

pruritic, erythemic, vesiculated

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3
Q

signs and symptoms of chronic dermatitis

A

pruritic, xerotic, lichenification

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4
Q

What is this condition

A

acute contact dermatitis
-burning, stinging, itching
- sharply demarcated plaques
- superficial edema/vesicles/crusting

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5
Q

what is this condition

A

chronic contact dermatitis
- itchy, dry, peeling
- ill-defined, plaques, lichenification, xerosis
- erythema, fissures, crust, thickening

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6
Q

What is the definition of contact dermatitis

A

acute or chronic inflammatory reaction to something that contacts the skin

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7
Q

What are the things that can cause contact dermatitis

A

irritants and allergens

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8
Q

what is this condition

A

irritant contact dermatitis

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9
Q

what type of dermatitis is diaper rash

A

irritant contact dermatitis

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10
Q

what is the street name for this form of irritant contact dermatitis

A

lip lickers dermatitis

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11
Q

characteristics of allergic contact dermatitis

A
  • delayed crescendo reaction (appx 48hrs later) with intense localized itching/burning
  • erythema, edema, papules, vesicles, crusting, scaling
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12
Q

what is this condition

A

allergic contact dermatitis

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13
Q

what is this condition

A

allergic contact dermatitis from poison ivy

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14
Q

What should contact dermatitis be washed with?

A

dawn dish soap

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15
Q

What should contact dermatitis be treated with

A

topical corticosteroids and emolient creams, potentially oatmeal soaps, anti-itch measures

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16
Q

Classes of topical corticosteroids

A

Class I: Super potent
Class II-III: high potency
Class IV-V: medium potency
Class VI-VII: low potency

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17
Q

General rules for Class I and Class II-III corticosteroids

A
  • limit use to 2-4 weeks to avoid systemic absorption
  • smaller areas only
  • no occlusion
  • avoid on thin skin: face, groin, intergrigenous areas, etc
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18
Q

General rules for Class IV-V corticosteroids

A
  • larger body surface area
  • use up to 3 months on non-facial and non-intertriginous areas
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19
Q

General rules for class VI-VII corticosteroids

A
  • best for thin skin
  • okay for long term use on large surface areas
  • okay for children
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20
Q

what is this skin condition

A

striae

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21
Q

What are some adverse effects of topical corticosteroids

A
  • atrophy
  • telangiectasia
  • striae
  • hypopigmentation
  • exacerbation of infections
  • allergic contact dermatitis
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22
Q

Systemic affects of topical steroids

A
  • cataracts
  • immunosuppression
  • hyperglycemia
  • decreased bone density
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23
Q

How much cream/ointment is 1 FTU

A

500 mg or 0.5 grams

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24
Q

what is this condition

A

atopic dermatitis

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25
Q

Atopic dermatitis characteristics

A
  • can be acute, subacute, chronic, relapsing
  • IgE hypersensitivity reaction
  • genetic and environmental
  • 4 pronged treatment
  • decreased skin barrier function
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26
Q

Characteristics of Atopy/Atopic Triad

A
  • Atopic dermatitis
  • Asthma
  • Allergies (allergic rhinitis, ASA, food)
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27
Q

What are the common sites of atopic dermatitis

A
28
Q

what is this condition

A

chronic atopic dermatitis: chronic hand eczema

29
Q

Common DDx for atopic dermatitis

A
  • seborrheic dermatitis
  • nummular eczema
  • contact dermatitis
  • psoriasis
  • scabies
30
Q

Skin conditions associated with atopic dermatitis

A
  • vitiligo
  • alopecia areata
  • wart susceptibility
  • exaggerated molluscum
31
Q

What is happening with the condition in this image

A

exaggeration of HSV by atopic dermatitis

32
Q

What may we see in a CBC with diff in someone with atopic dermatitis

A

eosinophilia (wheezes, sneezes, and weird diseases)

33
Q

What are the 4 prongs of the plan for atopic dermatitis

A
  • antipruritic
  • antibacterial
  • moisturizer
  • anti-inflammatory
34
Q

The topical calcineurin inhibitor ______ is best for moderate to severe atopic dermatitis

A

tacrolimus

35
Q

The topical calcineurin inhibitor _____ is best for mild to moderate atopic dermatitis

A

pimecrolimus

36
Q

Which ammonium lactate topical is good for thinning thick/lichenified areas of skin

A

AmLactin

37
Q

What condition is this

A

nummular eczema

38
Q

what condition is this

A

nummular eczema

39
Q

Characteristics of nummular eczema

A
  • pruritic
  • coin-shaped plaques of small papules/vesicles on erythematous base with no central clearing
  • greater in males than females
  • common in fall/winter
  • Ddx: Tinea corporis
  • Tx: topical steroids, emollients
40
Q

what is this condition

A

dyshidrotic eczema

41
Q

Characteristics of dyshydrotic eczema

A
  • vesicular hand and foot dermatitis
  • acute, chronic, recurrent
  • sudden, deep, pruritic vesicles (painful)
  • Ddx: scabies, tinea pedis, contact dermatitis
  • Tx: clobetasol, topical steroids with occlusion, steroid injection)
42
Q

What is this condition

A

seborrheic dermatitis

43
Q

What is this condition

A

seborrheic dermatitis

44
Q

Characteristics of seborrheic dermatitis

A
  • gradual onset
  • thick, greasy, yellow, scaly
  • crusting at ears
  • lymphadenopathy?
  • rinse with clear water, soft brush, self-resolving
45
Q

what is this condition

A

seborrheic dermatitis

46
Q

What is this condition and what test may be needed as follow up

A

severe seb derm - test for HIV if status unknown

47
Q

Seborrheic dermatitis Ddx

A
  • psoriasis
  • impetigo
  • tinea
  • intertriginous candidiasis
  • atopic dermatitis
48
Q

what is this condition

A

psoriasis

49
Q

what is this condition

A

psoriasis

50
Q

Characteristics of psoriasis

A
  • bimodal age distribution of onset
  • hereditary + environment
  • proliferation and poor differentiation of epidermis
  • Tcell driven autoreactive immune response
  • sharply demarcated silvery white scaling
  • positive auspitz sign
51
Q

What is this an example of

A

Koebner phenomenon in psoriasis

52
Q

What kind of psoriasis is this

A

chronic plaque psoriasis

53
Q

what kind of psoriasis is this

A

Guttate psoriasis (acute eruptive)

54
Q

What kind of psoriasis is this

A

inverse psoriasis

55
Q

What kind of psoriasis is this

A

pustular psoriasis

56
Q

what kind of psoriasis is this

A

erythrodermic psoriasis

57
Q

DDx for psoriasis

A
  • discoid/nummular eczema
  • cutaneous Tcell lymphoma
  • tinea corporis
58
Q

What condition is this

A

psoriatic arthritis

59
Q

characteristics of psoriatic arthritis

A
  • rare before age 20
  • distal hands/feet, small joints
  • red, swollen, tender joints
60
Q

Tx of psoriasis

A
  • soak scales off
  • topical corticosteroid ointment
  • steroid injection
  • Vit D analog
  • tar products
  • bland emollients
  • UV light
  • calcineurin inhibitors
  • methotrexate
  • biologics
61
Q
A

C

62
Q
A

B

63
Q

What does xerosis mean

A

dry skin

64
Q

patient presents with itchy, swollen upper eyelids. What product/substance may be involved?

A

cosmetics with cobalt - atopic dermatitis

65
Q

The medical term for itchy is _____ and itching is _____

A

pruritic, pruritis

66
Q

Cerave, vanicream, vaseline, aquaphor, and eucerine are examples of what?

A

emollients

67
Q

What formulation of topical steroids is the most potent

A

ointment

Dermatology (17 decks)

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