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Dermatology > Dry, Papulosquamous, Inflammatory Etc. > Flashcards

Dry, Papulosquamous, Inflammatory Etc. Flashcards

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Dermatology Board Prep flashcards
1
Q

Characteristics of lichen simplex chronicus

A
  • feels good to itch
  • localized plaque resulting from chronic eczematous inflammation/repetitive rubbing and itching
  • sharply demarcated
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2
Q

What is this condition

A

Lichen Simplex Chronicus
(DDx: tinea, allergic rxn, psoriasis)

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3
Q

Lichen Simplex Chronicus Tx

A
  • steroids
  • antipruritics
  • Abx for secondary infections
  • Treat stress
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4
Q

Characteristics of keratosis pilaris

A
  • mild follicular plugging
  • asymptomatic or pruritic
  • sandpaper texture
  • small rough folliculocentric keratotic papules, can be erythematous
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5
Q

What is this condition

A

keratosis pilaris
(DDx often confused with acne)

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6
Q

Keratosis pilaris Tx

A
  • emollients
  • tretinoin
  • lac-hydrin
  • avoid abrasion
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7
Q

Characteristics of xerosis

A
  • extremely dry skin
  • flares, worse in cold, pruritic, can exacerbate eczema
  • erythema, cracks, inflammed, Dried riverbed
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8
Q

What is this condition

A

Xerosis

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9
Q

Xerosis Tx

A
  • mild cleansers
  • emollients
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10
Q

Characteristics of icthyosis vulgaris

A
  • fish scales
  • autosomal dominant
  • excess accumulation of cutaneous scales
  • often seen with atopic dermatitis
  • extensor extremities
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11
Q

What is this condition

A

Icthyosis vulgaris (DDx: dry skin, xerosis, eczema)

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12
Q

Icthyosis vulgaris Tx

A
  • keratolytics
  • topical/systemic retinouds
  • topical corticosteroids
  • moisture
  • ammonium lactate
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13
Q

Pityriasis rosea characteristics

A
  • self limited asymptomatic papulosquamous eruption usually on trunk to extremities
  • not contagious
  • mild prodrome
  • herald patch = initial primary plaque
  • christmas tree distrubution with collarette scale
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14
Q

What is this condition and what is the arrow pointing to

A

pityriasis rosea and a herald patch (DDx: tinea, syphilis, tinea versicolor, guttate psoriasis)

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15
Q

Pityriasis rosea Tx

A
  • emollients
  • low potency topical steroids
  • oral antihistamines and sarna
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16
Q

What is this condition

A

Lichen planus (DDx: psoriasis, eczema, lichen simplex chronicus)

17
Q

characteristics of lichen planus

A
  • The 5 Ps (pruritic, planar, polygonal, purple, papules)
  • flexural surfaces
  • intermittent pruritic inflammatory cutaneous and mucous membrane rxn
  • Wickham striae appears as white reticular pattern in mouth
18
Q

Lichen planus Tx

A
  • self limiting
  • refer to derm
  • topical corticosteroids
  • treat pruritis
19
Q

What is this condition

A

granuloma annulare (DDx: tinea corporis, nummular eczema)

20
Q

Characteristics of granuloma annulare

A
  • slow progressive annular plaque
  • may be asymptomatic and present for years
  • worse in summer
  • firm, skin colored, erythematous, grouped arcuate or annular with central clearing/depression, smooth
  • dorsal/extensor surfaces
21
Q

Granuloma annulare treatment

A
  • observation
  • corticosteroids
  • intralesional steroids
  • cryotherapy
22
Q

What is this condition

A

erythema nodosum (DDx: cellulitis, insect bites, ecchymosis, panniculitis, purpura, vasculitis)

23
Q

Characteristics of erythema nodosum

A
  • inflammatory rxn in subQ fat caused by drugs, infection, systemic disorders
  • poorly defined red tender nodules on extensor surfaces
24
Q

treatment for erythema nodosum

A
  • treat underlying conditions
  • anti-inflammatories
  • bed rest
  • cool compress
  • topical corticosteroids
25
Q

What is this condition

A

Urticaria (DDx: drug eruption, viral exanthem, bites)

26
Q

characteristics of urticaria

A
  • sudden onset of variably pruritic rxn causing transient edematous red wheals
  • mast cells releasing histamines
  • sudden onset that quickly resolves
  • newest lesions = most red
  • dermatographism
27
Q

Urticaria treatment

A
  • antihistamines
  • corticosteroids
  • cool compress
  • treat underlying condition
28
Q

What is this condition

A

angioedema

29
Q

Characteristics of angioedema

A
  • acute allergic, non-allergic drug rxn, idiopathic/chronic, hereditary
  • abrupt evanescent swelling
  • 3 prominent sites: subQ, GI mucosa, upper airway
  • non-pitting swelling, generally not painful or itchy
30
Q

Treatment of angioedema

A
  • epinephrine/epi pen
  • medical alert bracelet
  • antihistamines
  • oral steroids
  • hospital

Dermatology (17 decks)

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