Superficial mycoses Flashcards

1
Q

caused by melassezia furfur

A

pityriasis versicolor

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2
Q

major factor pityriasis versicolor

A

excessive sweating

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3
Q

other disease c/o melassezia furfur

A
folliculitis 
sepsis
peritonitis
dacryoliths
sinusitis
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4
Q

used for direct diagnosis of furfur infectiond

A

KOH mount

wood’s light

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5
Q

causes pityriasis versicolor

A

melassezia furfur

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6
Q

causes pityriasis versicolor

A

melassezia furfur

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7
Q

catheter acquired

A

sepsis

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8
Q

itsura ng lesions sa wood’s light

A

yellow

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9
Q

causes black piedra

A

piedraia hortai

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10
Q

causes white piedra

A

trichosporon beigelli

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11
Q

KOH mount of black piedra

A

tightly packed regularly arranged thick walled cells

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12
Q

KOH mount of white piedra

A

transparent greenish irregular sheaths

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13
Q

culture for piedraia hortai

A

compact, dark brown to black conical colonies

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14
Q

culture for trichosporon beigelli

A

appears smooth, highly wrinkled or radially folded yeastlike cream colored

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15
Q

synonyms for tinea nigra

A

keratomycosis nigricans palmaris
cladosporiosis epidemica
pityriasis nigra
microsporis nigra

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16
Q

causes tinea nigra

A

cladosporium werneckii

exophiala werneckii

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17
Q

clinical manifestation of tinea nigra

A

dark patches on palm

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18
Q

cultures turn black in 2-3 weeks

A

cladosporium werneckii

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19
Q

mycotic keratitis is also called

A

keratomycosis

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20
Q

etiologic agents of keratomycosis

A

histoplasma capsulatum

fusarium solani

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21
Q

etiologic agents of keratomycosis

A

histoplasma capsulatum

fusarium solani

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22
Q

keratomycosis is more common in

A

males

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23
Q

manifestations of keratomycosis

A

raised cornea ulcers with satellite lesions, plaques or hypyon

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24
Q

etiology of cutaneous mycoses

A

dermatophytes

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25
Q

uses keratin as substrate

A

keratophilic fungi

26
Q

waxy mass of hyphal elements

A

scutulum

27
Q

fungal culture uses

A

SDA w/ cycloheximide

chloramphenicol

28
Q

treatment for cutaneous mycoses

A

azoles

griseofulvin

29
Q

organism that brings about decay

A

saprobe

30
Q

call walls of fungi contain

A

chitin or cellulose or both

31
Q

obligate or facultative

A

fungi

32
Q

long strands of cells with or without environmental crosswalls which grows by elongation

A

hyphae

33
Q

tawag sa crosswalls

A

septa

34
Q

masses of hyphae which comprises the colony of the fungus

A

mycelium

35
Q

single round to oval cell that usually buds to form daughter cells

A

yeast

36
Q

develop mold form colonies at RT and another form at body temp

A

thermally dimorphic fungi

37
Q

refers to any reproductive structure

A

conidium

38
Q

fungi that forms hyphae

A

molds

39
Q

grows in or on medium

A

vegetative mycelia

40
Q

grows above the surface

A

aerial mycelia

41
Q

from which reporductive feature arise

A

fartile mycelia

42
Q

leathery or waxy texture

A

glabrous

43
Q

resembles plush or velvet fabric

A

velvety

44
Q

resembles colonies of coagulase-negative staph

A

yeastlike

45
Q

develop when colonies produce long aerial hyphae

A

cottony

46
Q

fungi that conidiate or sporulate heavily

A

granular

47
Q

most often result of the accidental or recreational ingestion of fungi

A

mycestimus

48
Q

produced when grain is infected with claviceps purpurea

A

ergot alkaloids

49
Q

what infects grains in ergot alkaloids

A

claviceps purpurea

50
Q

contamination with aspergillus flavus

A

aflatoxins

51
Q

used to measure air pollution degree

A

fungal spore count

52
Q

mycoses with the highest incidence

A

candidiasis

dermatophytosis

53
Q

restricts the growth of several fungi by limiting the amount of availble iron

A

transferrin

54
Q

unicellular, spherical to ellipsoid fungal cells that usually reproduce budding

A

yeasts

55
Q

continuation of the budding process then produces a chain of elongated yeast cells

A

pseudohyphae

56
Q

growth is multicellular filamentous colonies

A

molds

57
Q

growth is multicellular filamentous colonies

A

molds

58
Q

cell walls are composed of

A

CHO layers
polysacc chains
glycoproteins
lipids

59
Q

produced by mating two compatible hyphal branches

A

zygospores

60
Q

yeasts or molds that have melanized cell walls imparting brown to black pigment

A

dermatiaceous fungi

61
Q

culture for fungi

A

sabouraud’s agar

62
Q

sabouraud’s agar contains

A

glucose

modified peptone pH 7