Micro: Mycology Flashcards

1
Q

Microconidia: “tear-drop” shap
Macroconida: “ “pencil-shaped”

A

T. rubrum/ T. mentagrophytes

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2
Q

Bamboo hyphae

A

M. ferrugineum

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3
Q

skin charac. of trichophyton

A

ring-shaped appearance

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4
Q

beaver tails

A

Epidermophyton floccosum

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5
Q

Barrel-shaped thick walled cells

A

Arthrospores/Arthoconidia

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6
Q

“LOLLIPOP conidia”

A

Blastomycosis/ Gilcrhrist’s Disease/Chicago Disease/ North American Blastomycosis

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7
Q
  1. Chains of alternate ✅ BARREL-SHAPED ARTHROCONIDIA / ✅ “cob-web” like growth / ✅ rope-like strands/ ✅ racquet forms
A

Coccidiodomycosis/Cocci/ Desert Fever/Valley fever/ Desert Rheumatism/ “The Bumps”/ San Joaquin Valley Fever/ Posadas Werneckii

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7
Q

“MARINER’S WHEEL”’

A

Almeida’s disease -

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8
Q

Spaghetti and meatball appearance

A

Pityriasis versicolor - Malassezia furfur complex.

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8
Q

white-pinkish, granular
and fluffy colonies
 rice medium negative

A

M. audonii

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9
Q

✅ ellipsoidal with blunt/rounded ends

✅ Cinnamon powdery colored colony

A

M. gypseum

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10
Q

Macroconidia: cigar-shaped Microconidia: grape-like cluster

A

T. mentagrophytes

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10
Q

Macroconidia: pencil-shaped Microconidia: tear-drop

A

T. rubrum

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11
Q

Chlamydoconidia: balloon-shaped

A

T. concentricum

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12
Q

Macroconidia: balloon-shaped Microconidia: club-shaped, tear- drop

A

T. tonsurans

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13
Q

Macroconidia: ✅Rat-tail Microconidia: large tear-drop, pyriform

A

T. verrucosum

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14
Q

Macroconidia: club-shaped in pairs

A

E. flocossum

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14
Q
  • Infection that involves the skin and subcutaneous tissue
  • Habitat: soil
A

SUBCUTANEOUS MYCOSES

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15
Q

Rose Gardener’s Disease - Sporotrichosis; causes redness, swelling & open ulcers at puncture sites, cigar-shaped yeasts in pus

A

Sporothrix schenkii

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16
Q

granulomatous sinus lesion of the foot

A

Pseudoallescheria boydii

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17
Q

Lobomycosis – small and hard nodules appearing on the extremities

A

Loboa loboi

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18
Q

Rhinosporidiosis – formation of tumor-like polyp on the nose

A

Rhinosporidium seeberi

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19
Q

long chain (branching)

A

Cladosporium carrionii

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20
Q

keloid-like subcutaneous nodule involving extremities, tissue form: multiple budding cells

A

Loboa loboi

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21
Q

✅ San Joaquin Valley Fever
✅ Desert Fever
✅ Mold: barrel-shaped arthroconidia

✅ Yeast: spherule with endospores

A

Coccidioides immitis

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22
Q

✅ Normal flora: skin, mucous membrane, GIT
✅ Produce yeast and hyphae in vivo
✅ Screening: Germ tube: forms at 35’C

✅Confirmatory: Chlamydospore: Corn Meal Tween 80 Agar

A

C. albicans

23
Q

ochratoxin is produced by

A

Aspergillus ochraceus

24
Q

Gliotoxin is produced by

A

Aspergillus fumigatus

25
Q
A
26
Q

most common lab contaminant

A

saprophytic fungi

27
Q

Side note:

✅ C. tropicalis = infection on immunocompromised host
✅ C. krusei = hematological disorders
✅ C. parapsilosis = endocarditis
✅ C. dubliniensis = double conidia

A

🐈

28
Q

Sickle or canoe shaped, multiseptate macroconidia

A

Fusarium

29
Q

Resemble C. neoformans
Encapsulated
To differentiate: Rhodotorula = pink colonies

A

Rhodotorula

30
Q

Also known as “Darling’s Disease”

A

Histoplasmosis

31
Q

“Darling’s Disease” causative agents

  • inhalation of bird droppings
A
  • Histoplasma capsulatum
  • Emmonsiella capsulata
32
Q

smallest yeast cell

A

Histoplasma capsulatum

33
Q

Young culture usually have a predominance of smooth walled MACROCONIDIA that become TUBERCULATE with age

A

Histoplasmosis

34
Q

INTRACELLULAR YEAST CELLS”

A

Histoplasmosis

35
Q

AKA:

  • Desert fever
  • Valley fever
  • Desert Rheumatism
  • The Bumps
    ✅* San Joaquin Valley Fever
  • PosadasWerneckii
A

Blastomycosis

36
Q

Chronic granulomatous disease of skin, mucous membrane, lymph nodes and internal
organs

A

Blastomycosis

37
Q

“prickly state” on medium with blood

A

Blastomycosis

38
Q

cigar shaped

A

sporotrichosis

39
Q

Also called as Verrucous dermatitis - Warty cutaneous nodules which resembles ✅flouts of cauliflower

A

CHROMOBLASTOMYCOSIS

40
Q

Called sclerotic bodies, medlar bodies,
✅copper-pennies bodies or muriform cells

A

CHROMOBLASTOMYCOSIS

41
Q

Also caused by dematiaceous (pigmented) fungi

A

PHAEOHYPHOMYCOSIS

42
Q

Club-shaped

A

Trichophyton tonsurans

43
Q

“Birds on fence”

A

T. rubrum

44
Q

Fungus ball (Aspergilloma)

A

Aspergillosis

45
Q

Necrotizing disease of the lungs

A

Granulomatous Aspergillosis

46
Q

most often seen in clinical laboratory

A

Aspergillus fumigatus

47
Q

causes onychomycosis

A

Aspergillus flavus

48
Q

major cause of otomycosis

A

Aspergillus niger

49
Q

Common among diabetics, pregnant woman and those on birth control pills

A

Mycotic Vulvovaginitis (Candidiasis)

50
Q

sausage appearance

A

Systemic Candidiasis

51
Q

CONFIRMATORY TEST for candida

A

GERM TUBE TEST

52
Q

Rhizoids originates between sporangiophores

A

Absidia spp.

53
Q

Also called as Torulosis or European Blastomycosis

– bird droppings
(excreta of pigeons)

A

Cryptococcosis

53
Q

sexual stage of Cryptococcus neoformans

A

Filobasidiella

53
Q

Single unbranched tube-like phialides, ”conidia in clusters”
at the
✅ tip of phialides

A

A. Acremonium spp.

54
Q

“brush-like conidiophores”

A

B. Penicillium spp.

55
Q

“Sickle or Boat–shaped macroconidia”

A

C. Fusarium spp.

56
Q

“Penicillium – like” structure

A

C. Scopulariosis

57
Q
  • Chains of large brown conidia resembling ✅ “drumstick”
A

A. Alternaria spp.

58
Q

“shield cells”

A

B. Cladosporium spp.