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OS 212 DERMATOLOGY > Common Pediatric Dermatoses in OPD > Flashcards

Common Pediatric Dermatoses in OPD Flashcards

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Dermatology Board Prep flashcards
1
Q

Honey colored crusts caused by Staphylococcus, Streptococcus, MRSA

A

Impetigo Contagiosa

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2
Q

treatment of Impetigo Contagiosa

A

Systemic antibiotics

cloxacillin, cephalexin, mupirocin

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3
Q

Caused by Mycobacterium leprae transmitted via inhalation/droplets

Hypopigmented or reddish skin lesion with sensory loss

History of Chronicity

A

Hansen’s disease

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4
Q

Treatment for Hansen’s disease

A

Multidrug therapy (rifampicin, clofazimine)

dapsone, clofazimine

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5
Q

Pearly smooth firm nodule. Nodule is non-itchy, flesh colored with central umbilication

A

Molluscum contagiosum

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6
Q

Koebner phenomenon

A

Spreading by trauma like scratching

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7
Q

treatment of Molluscum contagiosum

A

Imiquimod (topical)

0.05% tretinoin

Remove by curretage

Cryotherapy

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8
Q

Elevated rough graying papule increasing in size every time nicked out. Itchy when perspiring

A

Verruca vulgaris

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9
Q

Salient features of Verruca vulgaris

A

Papilloma
Slow growing, chronic
HPV types 1-4

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10
Q

Dx clincher for verruca vulgaris

A

tiny punctate black dots on wart surface representing thrombosed capillaries

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11
Q

Treatment for Verruca Vulgaris

A

Light cryotherapy
Topical Slicylic acid
Imiquinod
Electrodessication

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12
Q

Multiple Vesicular lesions (prodrome - low grade fever, malaise, headache)

A

Varicella

-raindrop on a rose petal

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13
Q

Differentiate Measles vs Varicella

A

Measles: TOP -> DOWN

Varicella: CENTRAL ->OUTWARDS

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14
Q

Treatment of Varicella

A

Neonatal varicella - acyclovir 500mg q8 x 10 days

child - acyclovir 20mg/kg qid x 5 days or symptomatic tx

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15
Q

Grouped vesicles following a dermatomal distribution, Unilateral

Painful (burning, tingling sensation)

papules and plaques of erythema in a dermatome followed by development of blisters within hour

A

Herpes Zoster

Illness lasts 2-3 weeks, 6 weeks

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16
Q

Treatment for herpes zoster

A

Golden Period: 3-4 days after appearance of vesicles to optimize efficacy

Acyclovir 800mf 5x/daily
Valcyclovir 1000mg
Famciclovir 500 mg 3x/daily for 7 days

17
Q

Papules with central punctum appear on exposed areas and arms and legs.

A

Mosquito bite

-Excoriations can give rise to secondary bacterial infection and prurigo nodularis

18
Q

Pruritic erythematous papules distributed in soft, warm and moist area, wrist area, armpit, inframammary area, umbilical, inner thigh, scrotal and buttock areas

NOCTURNAL PRURITUS

A

Scabies

-Sarcoptes scabiei

19
Q

Treatment for Scabies

A

Permethrin 5% lotion
(leave 8-12 h) -> repeat after 7 days

Crotamiton 10% apply for 3-5 days

Prevention: Take care of the fomites. (Scabies die in heart or seal in airtight bag for 7 days)

20
Q

Broken off stumps of hairs in rounded erythematous patches where there are scales, crust, or pustules and few hair

A

Tinea Capitis

21
Q

Black dot

A

endothrix (trichophyton tonsurans)

22
Q

Gray patch

A

Ectothrix (microsporon)

23
Q

Inflammatory tinea capitis

A

Kerion/favus or scutula, bluish white fluorescence

24
Q

Treatment for tinea capitis

A

systemic treatment

Oral antifungals:
Ultramicronized griseofulvin
Terbinafine
Itraconazole
Ketoconazole
25
Q

Chronic, inflammatory, lloos, dry, moist, greasy scales (Seborrheic Dermatitis)

A

Seborrheic dermatitis

Scalp - Most common form manifesting as dry flaky desquamation in infants, the scalp may be covered by a greasy dirty crust

26
Q

Treatment for Seborrheic dermatitis

A

Low potency corticosteroid cream

For scalp - selenium sulfide shampoo, tar, zinc, pyrithione

In auditory meatus - low potency cortisone and 2 % acetic acid

allylamines - dermatophytic infection

27
Q

Primary lesions are discrete coin-shaped erythematous, vesicular or crusted plaques

Legs are favored areas

Chronic and relapsing

A

Nummular eczema

28
Q

Treatment for nummular eczema

A

If infected, topical antimicrobials may be given

If not infected, may use potent corticosteroid creams, oral antihistmines, moisturizers.

OS 212 DERMATOLOGY (9 decks)

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