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Dermatology > Fungal & Parasitic Infections > Flashcards

Fungal & Parasitic Infections Flashcards

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Dermatology Board Prep flashcards
1
Q

superficial mucocutaneous yeast infection

A

candidiasis

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2
Q

a patient presents with pruritis/burning sensation, denuded, beefy red areas of infection. They have a well demarcated patch with satellite lesions + whitish curd-like substance. what are they likely experiencing?

A

candidiasis

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3
Q

a patient presents with pruritis/burning sensation, denuded, beefy red areas of infection. They have a well demarcated patch with satellite lesions + whitish curd-like substance. how do we diagnose this?

A

KOH prep

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4
Q

what are seen in a KOH prep of candidiasis?

A

clusters of budding yeast and pseudohyphae

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5
Q

what is the treatment for oral thrush in infants?

A

nystatin

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6
Q

what is the diagnosis and the 2 treatment options?

A

localized candidiasis

nystatin
miconazole

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7
Q

what is the treatment for vulvar or anal candidiasis?

A

fluconazole

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8
Q

fungus capable of infecting dead keratinized cutaneous structures

A

dermatophyte

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9
Q

what increases the risk for dermatophyte infection and proliferation? (2)

A

immune compromise
steroid use

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10
Q

how to diagnose a dermatophyte? (2)

A

KOH prep - budding yeast and pseudohyphae

wood’s lamp exam - blue green color

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11
Q

a 30 yo patient presents with dry and scaly lesions on the head and beard. what is the diagnosis (2) and treatment options (4)?

A

tinea capitis
tinea barbae

ORAL:
griseofulvin
terbinafine
fluconazole
itraconazole

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12
Q

annular/arcuate lesion that has a raised border with central clearing that is also called “ring worm”. what is the diagnosis? what is the preferred treatment?

A

tinea corporis
terbinafine - 2cm margin for 7 days after resolution

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13
Q

dry scaling of the skin and macerated + damp skin in web spaces of the hands and feet. what is the diagnosis and treatment?

A

tinea manuum and pedis
topical terbinafine

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14
Q

infection of the nail that becomes thick, yellow and brittle. what is the diagnosis and treatment?

A

tinea unguium
oral terbinafine

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15
Q

infection of the groin area also called Jock Itch, that presents as annular, scaly plaques, usually with a demarcated edge and central clearing with possible scaling. what is the diagnosis and treatment (2)?

A

tinea cruris
topical terbinafine + drying powder

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16
Q

what is the treatment for dermatophytes in children?

A

griseofulvin

17
Q

lipophillic yeast that is part of the skin’s normal flora, infection occurs during periods of overpopulation

A

tinea versicolor

18
Q

what is the etiology of tinea versicolor? (2)

A

malassezia furfur
M globosa

19
Q

what triggers tinea versicolor? (2)

A

hot months
topical lipids (cocoa butter)

20
Q

a patient presents with well-demarcated patches with fine scale that becomes accentuated when skin is scratched or stretched. what is the diagnosis and treatment (2)?

A

tinea versicolor

selenium shampoo
oral fluconazole x 2 doses 14 days apart

21
Q

what is pediculosis pubis often considered?

A

an STI

22
Q

pediculosis capitus/corporis/pubis

A

lice

23
Q

a patient presents with pruritis, small erythematous lesions on their body from feeding. what is the diagnosis and 3 treatment options?

A

pediculosis corporis

topical permethrin, pyrethrin, malathion

24
Q

what should be used to treat pediculosis pubis on the eyelashes?

A

petroleum jelly for 8 days

25
Q

what is the etiology of scabies?

A

sarcoptes scabiei

26
Q

a patient presents with intense pruritis, lesions found in web spaces of body, erythematous papules with burrows + skin scaling and thickening. what is the diagnosis and first line treatment?

A

scabies
permethrin - leave on for 8-14 hours

27
Q

what is the treatment for severe scabies?

A

topical or oral ivermectin

28
Q

what can be used to treat pruritis of scabies? (2)

A

diphenhydramine
hydroxyzine

Dermatology (15 decks)

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