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Clinical Pathology > Clinical Mycology > Flashcards

Clinical Mycology Flashcards

1
Q

two main ways fungal agents are identified

A

macroscopic and microscopic

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2
Q

what clinical condition do dermatophytes cause

A

dermatophytosis (ringworm)

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3
Q

how are dermatophytes classified

A

based on habitats

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4
Q

dermatophytes classifications

A

anthropophilic
zoophilic
geophilic

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5
Q

anthropophilic dermatophytes

A

confined to humans

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6
Q

zoophilic dermatophytes

A

parasites of animals

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7
Q

geophilic dermatophytes

A

normally existing as free-living saprophytes in the soil

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8
Q

3 dermatophytes common to vet med

A

microsporum canis
microsporum gypseum
trichophyton mentagrophytes

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9
Q

cutaneous mycoses

A

microsporidium canis
microsporidium gypsum
trichophyton mentogrophytes

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10
Q

systemic mycoses

A

aspergillus fumigatus
blastomyces dermatitidis
histoplasma capsulatum
sporothrix schenckii
coccidiodes immitis
cryptococcus spp.

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11
Q

opportunistic mycoses

A

candida albincans
malassezia spp.

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12
Q

why is microscopic evaluation important to ID dermatophytes

A

able to identify the macroconidium and microconidia

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13
Q

key principles of Wood’s lamp

A

UV light because some microsporum are fluoresce

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14
Q

are all species of ringworm fluorescent

A

no

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15
Q

what should happen if a dermatophyte is grown on DTM

A

color change at same time as growth due to protein and carb metabolism

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16
Q

where is candida spp commonly found

A

mucous membrane and GI tract

17
Q

where is malassezia commonly found

A

normal skin flora of humans and animals

18
Q

predilection site/disease of aspergillus in horses

A

guttural pouch mycosis

19
Q

predilection site/disease caused by aspergillus in cattle

A

mycotic abortion, mastitis

20
Q

predilection site/disease caused by aspergillus in dogs

A

localized to nasal cavity or paranasal sinuses, caused by infection

21
Q

which species is most susceptible to developing blastomycosis

A

dogs

22
Q

ways blastomycosis can de diagnosed

A

cytology
urine antigen testing
PCR
“snowstorm” on radiographs

23
Q

what does it mean when a fungal agent is dimorphic

A

switches between yeast and hyphae

24
Q

which fungal agent causes valley fever

A

coccidiodes

Clinical Pathology (17 decks)

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