Mycoses Flashcards

0
Q

Most virulent among human mycotic agents

A

Coccidiodes immitis

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1
Q

Diagnostic feature of B. dermititidis

A

Double contoured wall

Broad based bud

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2
Q

MOT of C. immitis

A

Inhalation of barrel shaped arthroconidia

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3
Q

Produce endospores into the bloodstream

A

Spherules

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4
Q

Infects what part of the blood. H. capsulatum

A

Buffy coat layer-WBC

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5
Q

Diseases in C. immitis

A

Desert fever
San Joaquin Valley fever
desert Rheumatism
Desert bumps

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6
Q

Resides in soil with high nitrogen content

A

Histoplasma capsulatum

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7
Q

MOT of H. capsulatum

A

Inhalation of microconidia

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8
Q

H. capsulatum resemble what fungus?

A

Candida glabrata

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9
Q

Paracoccidiomycoses

A

South American blastomycosis
Lutz-Splendore-Almeida disease
Brazilian blastomycosis
Paracoccidioidal granuloma

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10
Q

Presence of brown Rhizoids

A

Rhizopus

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11
Q

Diagnostic feature of Paracoccidioides brasiliensis

A

Mariner’s wheel appearance of the yeast
Narrow based
Mickey mouse cap appearance of buds

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12
Q

Only dimorphic and pathogenic Penicillium

A

Penicillium marneffei

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13
Q

Premier caused of yeast infection. Color green in CHROM agar

A

Candida albicans

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14
Q

Histoplasmosis

A
Reticuloendothelial cytomycosis
Cave disease
Spelunkers disease
Darling disease
Ohio valley fever
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15
Q

Most notorious agents of yeast infections

A

Candida spp.

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16
Q

Opportunistic mycoses without rhizoids

A

Mucor

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17
Q

Hyaline saprophyte . Second most isolated fungi

A

Aspergillus

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18
Q

Fungus ball in the lungs

A

Aspergillus spp.

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19
Q

Hyalin saprophyte seen in mycotic keratitis

A

Fusarium

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20
Q

Stain used to detect capsule

A

India ink

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21
Q

Most notable pathogen

A

Cryptococcus neoformans

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22
Q

Specie most common isolated from human. Pneumocystis

A

Pneumocystis jiroveci

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23
Q

Classified with protozoan. Commonly found on rats

A

Pneumocystis carinii

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24
Q

Teleomorph form of B. dermititidis

A

Ajellomyces dermititidis

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25
Q

Macroconidia of fusarium

A

Banana or canoe shaped

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26
Q

Diagnostic feature of H. capsulatum

A

Tuberculate macroconidia

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27
Q

Causative agent of cryptococcal meningitis

A

Cryptococcus neoformans

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28
Q

Specimen of choice for Cryptococcus neoformans

A

Csf

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29
Q

Mode of differentiation for Cryptococcus neoformans

A

Production of phenol oxidase

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30
Q

Disease cause by malassezia furfur

A

Tinea versicolor

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31
Q

Inhabits the lungs of many mammals

A

Pneumocystis

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32
Q

MOT of pneumocystis

A

Inhalation of cyst

33
Q

Predictive factor for developing aspergillosis

A

Neutropenia

34
Q

Disease cause by B. dermititidis

A

Gilchrist disease
North American Blastomycosis
Chicago disease

35
Q

Masters wand or elders wand appearance

A

Altenaria

36
Q

Affects the entire system

A

Systemic mycoses

38
Q

Fungal diseases that affect only the cornified layer

A

Superficial mycoses

39
Q

Appear as pale patches in individual with dark skin

A

Tinea versicolor

40
Q

Morphologic characteristic of M.furfur

A

Spaghetti and meatballs

41
Q

MOT of M.furfur

A

Direct contact

42
Q

Grows only on SDA at room temperature. Forms brown, restricted colonies that remain sterile

A

Piedraia hortae

43
Q

Disease caused by P.hortae

A

Black piedra

44
Q

The nodules of black piedra contain

A

Asci with eight ascospore

45
Q

Thick walled rhomboid cells containing ascospore are seen

A

Black piedra

46
Q

Common cause of white piedra

A

Trichosporon beigelii

47
Q

Occurs on the hair shaft characterized by a soft mycelial mat surrounding hair of the scalp, face and pubic region

A

White piedra

48
Q

Requires lipid for growth

A

Malassezia furfur

49
Q

Produce both Arthroconidium and blastoconidium

A

Trichosporon spp

50
Q

Produces shiny, moist, yeastlike colonies that start with a brownish coloration that eventually turns olive to greenish black

A

Hortaea werneckii

51
Q

Brown to black nonscaly macules that occur most often on the palms of the hnads and soles of the feet

A

Tinea nigra

52
Q

Specific conidia seen in tinea nigra

A

Anneloconidia

53
Q

General description of dermatophytes

A

Keratinophilic

54
Q

Produces macroconidia and microconidia

A

Dermatophytes

55
Q

Human dermatophytes

A

Arthrophilic

56
Q

Beard hair

A

Tinea barbae

57
Q

Glabrous skin

A

Tinea corporis

58
Q

Affecting the hand

A

Tinea manuum

59
Q

Affecting the nails

A

Tinea unguium or onychomycosis

60
Q

Affecting the groin

A

Tinea cruris or jock itch

61
Q

Affecting the feet

A

Tinea pedis

62
Q

Causative agent of favus

A

Trichophyton schoenleinii

63
Q

Spindle shaped macroconidia

A

Microsporum canis

64
Q

Fusiform macroconidia

A

Microsporum gypseum

65
Q

Microconidia and macroconidia of Trichophyton mentagrophytes

A

Micro- tear shaoed

Macro- cigar shaped

66
Q

Clavate or peg shaped microconidia

A

Trichophyton rubrum

67
Q

Positive result of hair perforation test

A

V shaped

68
Q

Only organism positive for hair baiting test

A

Microsporum gypseum

69
Q

Organism who produced red pigment along cornmeal agar and PDA

A

Trichophyton rubrum

70
Q

Agricultural workers are often affected

A

Subcutaneous mycoses

71
Q

Chronic mycoses of the skin and subcutaneous tissue. Lesion are usually confined in lower extremities

A

Chromoblastomycosis

72
Q

Distinguishing or diagnostic feature of chromoblastomycosis

A

Sclerotic body and cauliflower like surface

73
Q

Infection that arises at the site of inoculation. Characterized by swelling with characteristics exudate draining to the skin surface through sinus traits

A

Eumycotic mycetomas

75
Q

Rosette microconidia

A

Sporothrix schenckii

77
Q

Organisms under chromoblastomycosis

A
Fonsecaea compacta
F. Pedrosoi
Phialophora verrucosa
Cladophialophora carrionii
Rhinocladiella aquaspersa
78
Q

Organism under eumycotic mycetomas

A
Pseudallescheria boydii
Acremonium falciforme
Madurella mycetomatis
Madurella grisei
Exophiala jeanselmi
79
Q

Mycotic diseases caused by darkly pigmented fungi.. Produces olivaceous to black colonies that ate initially yeast like but become velvety at maturity

A

Subcutaneous phaeohypomycosis

80
Q

Distinguishing feature of S.schenckii

A

Asteroid body

81
Q

Associated with gardening. Rose handler disease

A

Sporothrix schenckii

83
Q

Infection that occurs on the hairs of the scalp. Produces hard dark brown to black gritty nodules that are firmly attached to the hair shaft

A

Black piedra

84
Q

Result from traumatic implantation of foreign objects into the deep layers of the skin permitting the fungus to gain entry into the host

A

Subcutaneous mycoses