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Site Of Infections Flashcards

0
Q

What part of the cornified layer is infected

A

Stratum corneum

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1
Q

Site of infection where cornified layer of epidermis is infected

A

Superficial mycoses

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2
Q

Causative agent of tinea versicolor

A

Malassezia furfur

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3
Q

Causes of the causative agent in superficial mycoses

A

Tinea versicolar
Or
Pityriasis versicolor

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4
Q

Common endogenous skin colonizers

A

Malassezia furfur

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5
Q

Growth requirement for malassezia furfur

A

Lipids

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6
Q

Lab diagnosis in malassezia furfur

A

Spaghetti and meatball appearance

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7
Q

Test for

Malassezia furufur

A

Direct microscopy, use of koh 10-20%

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8
Q

Causative agent of black piedra

A

Piedraia hortae

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9
Q

Black/dark brown gritty nodules that are attached to shaft of hair

A

Black piedra

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10
Q

Nodules of black piedra contains

A

Ascospores

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11
Q

Lab diagnosis for piedraia hortae

A

Hair shaft with 10-20% koh

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12
Q

Causative ahent of white piedra

A

Trichosporon beigelii

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13
Q

Common human pathogen which trichosporon spp contain

A

Arthroconidia

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14
Q

Trichosporon spp

A 
Beigelii
Ovoides
Asteroides
Cutaneum
Inkin
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15
Q

Causative agent of tinea nigra

A

Hortea werneckii

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16
Q

Black non scaling macules in palms and soles of the feet

A

Tinea nigra

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17
Q

Lab diagnosis for tinea nigra which contains

A

Anneloconidia

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18
Q

Site of infection which considers that they are keratinophilic or dermatophytes

A

Cutaneous mycoses

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19
Q

Cutaneous mycoses

A

Trichophyton
Microsporum
Epidermophyton

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20
Q

Cutaneois mycoses produces

A

Macro/microconodia

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21
Q

Dermatophyte classifications

A

Geophilic
Zoophilic
Anthropophilic

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22
Q

Example of geophilic dermatophyte

A

Microsporum gypseum

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23
Q

Example of zoophilic dermatophyte

A

Microsporum canis

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24
Q

Example of anthropophilic dermatophyte

A

Trichophyton rubrum

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25
Q

Also called athlete’s foot

A

Tinea pedis

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26
Q

Site affected for tinea capitis

A

Head

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27
Q

Site affected for tinea favosa

A

Head (distinctive pathology)

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28
Q

Site affected for tinea barbae

A

Beard

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29
Q

Site affected for tinea corporis

A

Body (glabrous skin)

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30
Q

Site affected for tinea manuum

A

Hand

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31
Q

Site affected for tinea unguium

A

Nails

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32
Q

Site affected for tinea cruris

A

Groin

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33
Q

Site affected for tinea pedis

A

Feet

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34
Q

Site affected for tinea imbricata

A

Body (distictive lesion)

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35
Q

Tinea favosa dermatophyte

A

Trichophyton schoenleinii

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36
Q

What ring worm causes the gray patch ringworm

A

Tinea capitis

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37
Q

Best to collect in gray patch ringworm

A

Side

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38
Q

Dermatophytes for gray patch ringworm

A

Microsporum audouinii

Microsporum ferrugineum

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39
Q

Also causes black dot ringworm

A

Tinea capitis

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40
Q

Dermatophytes for black dot ringworm

A

Trichophyton tonsurans

Trichophyton violaceum

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41
Q

Ectothrix

A

Gray patch ringworm

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42
Q

Endothrix

A

Black dot ringworm

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43
Q

Jock itch

A

Tinea cruris

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44
Q

Infection of nails

A

Onchomycosis

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45
Q

Dermatophyte for tinea imbricata

A

Trichophyton concentricum

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46
Q

Agents of cutaneous mycoses

A

Microsporum canis
Microsporum gypseum
Trichophyton mentagrophytes
Trichophyton rubrum

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47
Q

Spindle shaped macroconidia

A

M canis

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48
Q

Fusiform

Shaped agent

A

Microsporum gypseum

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49
Q

Tear shaped microconidia

Cigar shaped

A

Trichophyton mentagrophytes

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50
Q

Clavate or peg shaped

A

Trichophyton rubrum

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51
Q

Positive result of hair perforation test

52
Q

Differentuation of what fungi in hair perfo

A

+ t. Mentagrophytes

- t rubrum

53
Q

Positive result for hair baiting test

54
Q

Fungi positive for hair baiting test

A

M. Gypseum

55
Q

Urea agar/ broth

A

+ t menta

- t rubrum

56
Q

Cornmeal agar

A

+ t rubrum - t menta

57
Q

Potato dextrose agar

A

+ t rubrum

- t mentagro

58
Q

Mode of transmission of subcutaneous mycoses

A

Traumatic implantation of foreign objects in the deep layer of the skin

59
Q

Usually infected subcutaneous mycoses

60
Q

Chromoblastomycosis

A 
Fonsecaea compacta
Fonsecaea pedrosoi
Philalophora verrulosa
Cladophialiphora carrionii
Rhinocladiella aquaspersa
61
Q

Sample for chromoblastomycosis

A

Skin biopsy

62
Q

Appearance of chromoblastomycosis

A

Cauliflower appearance

63
Q

Lab diagnosis for chromoblastomycosis

A

Presence of sclerotic bodies

64
Q

Eumycotic mycetoma

A 
Pseudallescheria boydii
Acremonium falciforme
Madurella mycetomatis
Madurella grisea
Exophiala spp
65
Q

Tumor like lesion

A

Eumycotic mycetoma

66
Q

Phaeohyphomycosis

A 
Alternaria
Bipolar
Ochronais
Chaetomijm
Oidiodendron
Cladosporium etc
67
Q

Presence in phaehyphomycosis

68
Q

Agent of sporotrichosis

A

Sporothrix schenckii

69
Q

Other term for sporotrichosis

A

Rose handler’s disease

70
Q

Lab diagnosis for sporotrichosis

A

Cigar shaped YEAST CELL
Daisy shaped microconidia
Asteroid body

71
Q

Discoloration or depigmentation and scaling of the skin

A

Tinea versicolor

72
Q

Copper pennies

A

Sclerotic bodies

73
Q

Is caused by both fungi andbacteria and results in draining sinus tracts and tissue destruction

A

Eumycotic mycetoma

74
Q

Fawn colored liver spots

A

Tinea versicolor

75
Q

Colony charwcteristic of t versicolor

A

Cream colored
Moist
Smooth

76
Q

Trichosporonspp which is implicated in severe and frequently fatal disease in immunocompromised hosts

A

T. asahaii

77
Q

Systemic mycoses

78
Q

Mot systemic mycoses

A

Inhalation(lung infection)

Spores

79
Q

Double walled yeast cells

A

Blastomyces dermatitidis

80
Q

Broad base budding yeast

A

Blastomyces dermatitidis

81
Q

Causes of blastomyces dermatitidis

A

Gilcrist disease
North american blastomycosis
Chicago disease

82
Q

Teleomorph of blasto derma

A

Ajellomyces dermatitidis

83
Q

Sample for the double walled yeast cells

A

Sputum
Blood
Tissue biopsy

84
Q

Most virulent type of all human mycotic agent

A

Coccidiodes immitis

85
Q

The same as C. Immitis

A

Coccidiodes posadasii

86
Q

Differentiation of coccidiodes spp

A

Pcr dna protein

87
Q

Causes of coccidiodes immitis

A

Coccidioidomycosis
San joaquin valley fever
Dessert fever
Dessert rheumatism

88
Q

Lab diagnosis of coccidiodes immitis

A

Barrel shape Arthroconidia

89
Q

Distinguishing feature of c. Immitis

A

Spherule(contains endospores)

90
Q

Differentiate in wbc live in macrophage

A

Histoplasma capsulatum

91
Q

Causes of histoplasma capsulatum

A 
Histoplasmosis
Onio valley fever
Reticuloendothelial cytomycosis
Cave disease
Spelunker's disease
Daring disease
92
Q

Isolation of histoplasma capsulatum

A

Bat or birds guano

93
Q

Lab diagnosis pfhistoplasma capsulatum

A

Tuberculate macroconidia

94
Q

Mistaken as histoplasma capsulatum

A

Candida glabrata

95
Q

Differentiation of c. Glabrata and histoplasma capsulatum

A

Fluorescent antibody testing

Chrom agar

96
Q

Mariner’s wheel appearance

A

Paracoccidiodes brasiliensis

97
Q

Minnie mouse’s cap

A

Paracoccidiodes brasiliensis

98
Q

Narrow sgape budding yeast

A

Paracoccidiodes brasiliensis

99
Q

Causes of p. Brasiliensis

A 
Paracoccidiodomycosis
South american blastomycosis
Paracoccidioidalgranuloma
Lutz-splendor-ameida dse. 
Brazilian blastomycosis
100
Q

Oly dimorphic pathogenic penicillium spp

A

Penicillium marneffei

101
Q

Opportunistic mysoses

A 
Mucor
Rhizopus
Aspergillus
Fusarium
Alternaria
102
Q

Most common mucorales that causes human disease

103
Q

Assoc with diabetic patients

104
Q

Rhinocerebral zygomycosis

105
Q

No rhizoids

106
Q

W rhiziods

107
Q

Most common aspergillus spp

A

Aspergillus fumigatus

108
Q

Assoc with bone marrow transplantation

A

Aspergillus spp

109
Q

Fungal wall

A

Aspergillus spp

110
Q

Aspergillus spp

A

Fumigatus
Flavus
Terreus
Niger

111
Q

High risk of aspergillosis

A

Neutropenia

112
Q

Banna shape

113
Q

Canoe shape

114
Q

Mycotic keratitis

115
Q

Elder wand like fungi

A

Alternaria

116
Q

Most notious agents of yeast infection

117
Q

Yeast

A

Can undergo sexual repro

118
Q

Example of yeast infection

A

Basisio

Asco

119
Q

Yeast like

A

Cannotundergo sexual repro

120
Q

Most common

A

C. Albicans

121
Q

2nd most common candida

A

C. Glabrata

122
Q

Esrly indication of immuno suppression

123
Q

Causes of cryptococcus neoformans

A

Fungal meningitis

124
Q

Specimen c. Neoformans

125
Q

Reagent c. Neoformans

A

India ink

Nigrossin dye

126
Q

Rotozoan

A

Pneumocystis carinii

127
Q

Infection in rats

A

Pneumocystis jirovecii

128
Q

Infection in human(agents of yeast infection)

A

Pneumocystis jirovecii

Mycology (1 decks)

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