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VIROLOGY > Subcutaneous Mycoses > Flashcards

Subcutaneous Mycoses Flashcards

1
Q

what involves the muscle, lymphatic vessels, and connective/neighnoring tissue

A

Subcutaneous mycoses

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2
Q

T or F: if there is a common infection in the subcutaneous mycosis it disseminates in the blood or other organs

A

F

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3
Q

aka Madura foot

A

mycetoma

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4
Q

what kind of infection is a mycetoma

A

skin/soft tissue

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5
Q

def? mass, sinus formation, and discharge with grains

A

mycetoma

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6
Q

treatment for mycetomas

A

long term use of antifungals or amputation

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7
Q

where do people usually get mycetomas

A

foot than hand

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8
Q

how do you get a mycetoma

A

thorn prick or exposure to contaminated environment

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9
Q

who is more likely to get a mycetoma males or females

A

males

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10
Q

what is a mycetoma called that is caused by fungi

A

eumycotic

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11
Q

what is a mycetoma called that is caused by bacteria

A

actinomycotic

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12
Q

Madurella, Pseudallescheria boudin, and leptosphaeria spp. all cause what kind of mycetoma

A

eumycetoma

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13
Q

nocardia, streptomyces, and actinomyces all cause what kind of mycetoma

A

actinomycetoma

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14
Q

how do mycetoma nodules drain

A

sinus tracts

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15
Q

where do you find the organisms in a mycetoma

A

grains

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16
Q

what organism causes black grain eumycetoma

A

madurella mycetomatis

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17
Q

what organism causes black grain actinomycetoma

A

madurella grisea

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18
Q

how do you differentiate between m. mycetomatis and m. grisea

A

m. grisea can grow at 37C

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19
Q

what kind of mycetoma does pseudallescheria boydii

A

eumycetoma

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20
Q

how do people get exposed to p. boydii

A

soil via inhalation

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21
Q

does p. boydii cause black or white grain mycetoma

A

white

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22
Q

what organism causes systemic pseudallescheriasis

A

p. boydii

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23
Q

what kind of pt get systemic pseudallescheriasis

A

cystic fibrosis

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24
Q

T or F: p. boydii is very difficult to treat

A

T

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25
Q

is p. boydii asexual or sexual

A

sexual

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26
Q

what is the asexual form of p. boydii

A

scedosporium apiospermum

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27
Q

what sexual fruiting body does p. boydii produce

A

cleistothecium

28
Q

where is leptosphaeria spp found

A

soil

29
Q

does Leptosphaeria spp. cause eumycetoma or actinomycetoma

A

eumycetoma

30
Q

what kind of eumycetoma does leptosphaeria spp. cause

A

black grains with pale centers

31
Q

what class is leptosphaeria spp apart of

A

ascomycota

32
Q

actinomycete do what kind of respiration

A

aerobic or anaerobic

33
Q

what is the microscopy of actinomycetes

A

filamentous that branch

34
Q

what is the color of pus cause by actinomyces

A

sulfur granules

35
Q

what is the most common actinomyces

A

a. israelii

36
Q

what type of myocardia usually causes mycetoma

A

n. brasiliensis

37
Q

what does the pus of nocardia have

A

sulfur granules

38
Q

a chromic nocardia disease effect what in the body

A

respiratory tract

39
Q

what type of nocardia causes chronic disease

A

n. asteroides

40
Q

what do streptomyces spp. look like under the microscope

A

gram pos filimentous

41
Q

what do streptomyces spp cause

A

mycetoma

42
Q

what organisms is responsible for many antimicrobials used today

A

streptomyces spp.

43
Q

what genus of Bactria don’t have true branching and have pos acid fast stain

A

mycobacterium

44
Q

what is lymphocutaneous sporotrichosis known as

A

rose gardener’s disease

45
Q

is lymphocutaneous sporotrichosis di or monomorphic

A

dimorphic

46
Q

what fungus causes lymphocutaneous sporotrichosis

A

sporothrix schenckii

47
Q

where do lesion progress with lymphocutaneous sporotrichosis

A

subcutaneous lymphatics

48
Q

what does sporothrix schenckii look like under the microscope if it is from the environment

A

mold (flowers)

49
Q

what does sporothrix schenckii look like under the microscope if it is from inside a pt

A

yeast

50
Q

what does hyalo mean

A

glass

51
Q

what fungus causes eumycotic white grain mycetoma hyalohyphomycosis

A

acremonium

52
Q

what is the common causative agent of trauma hyalohyphomycosis

A

fusarium

53
Q

what does fusarium produce that can cause an allergic rxn or be a carcinogenic

A

mycotoxins

54
Q

where do you find geotrichum

A

dairy

55
Q

what does geotrichum cause

A

hyalohyphomycosis

56
Q

what kind of hylohyphomycosis infections does paecilomyces cause

A

eye

57
Q

what is found in the tissue of chromoblastomycosis

A

sclerotic bodies

58
Q

what do this organism cause Fonsecaea spp., phialophora spp., and cladsporium spp.

A

chromoblastomycosis

59
Q

what does phaeo mean

A

gray

60
Q

what kind of fungi causes phaeohyphomycosis

A

darkly pigmented

61
Q

T or F: phaeohyphomycosis has no sclerotic bodies

A

T

62
Q

what group of fungi cause subcutaneous zygomycosis/ mucormycosis

A

mucormycetes

63
Q

what do mucor, rhizopus, and absidia cause

A

zygomycosis

64
Q

what does mucor look like

A

no roots

65
Q

what does rhizopus look like

A

roots right below

66
Q

what does absidia look like

A

roots off to side and branched

VIROLOGY (6 decks)

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