MYCOVIRO - CH 60 of book part 3 Flashcards Preview

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Flashcards in MYCOVIRO - CH 60 of book part 3 Deck (56):
1


- colony: fluffy to granular, white to blue-green

A. fumigatus

2

- septate hyphae, short or long conidiophores with “foot cell” (T or L shaped) at the base

A. fumigatus

3

- thermotolerant (can withstand up to 45C)

A. fumigatus

4

ASPERGILLUS SPP.
- identified by the (2)

morphology or conidial heads

5


- conidiophore is coarsely roughened near the vesicle

A. flavus

6

- colony: yellow-green

A. flavus

7

- globose vesicles producing phialides directly from surface (uniserate) or from metulae, a primary row of cells (biserate)

A. flavus

8

- yellow-orange, elliptical or spherical conidia

A. flavus

9


- darkly pigmented, roughened spores (macroscopically)



A. niger

10

- hyaline and septate hyphae (microscopically)

A. niger

11

- colony: begins as yellow then develops black dotted surface as conidia is produced

A. niger

12

- reverse side (Aspergillus spp): buff or cream

A. niger

13

- long conidiophores

A. niger

14


- colony: tan, resembling cinnamon

A. terreus

15

- hemispherical vesicles, phialides covers the entire surface

A. terreus

16

- aleurioconidia: larger cells found on submerged hyphae

A. terreus

17

- globose to elliptical conidia in chains

A. terreus

18


- colony: fluffy to cottony, may be pink, purple, yellow, green (depending on species)
- hyphae are small and septate

FUSARIUM SPP.

19

- most common medium to induced sporulation of Fusarium

cornmeal agar:

20

for identification of Fusarium

potato dextrose agar

21


- colony: white to cream, yeastlike
- hyphae are septate with rectangular to cylindrical to barrel-shaped arthroconidia

GEOTRICHUM CANDIDUM

22


- initial colony: yeastlike
- mature colony: white to gray to rose or reddish-orange
- small septate hyphae, ellipitical, single-celled conidia

ACREMONIUM SPP.

23


- colony: green or blue-green, velvety to powdery because of conidia

PENICILLIUM SPP.

24

- hyphae are hyaline and septate, produce brushlike conidiophore

PENICILLIUM SPP.

25

- blunted phialides producing small oval conidia

PENICILLIUM SPP.

26

colony: velvety, tan to olive brown, somewhat powdery

PAECILOMYCES SPP.

27

lavender to pink colonies

P . lilacinus:

28

long, delicate, tapering phialides

PAECILOMYCES SPP.

29

- colony: initially appear white but becomes light brown and powdery

SCOPULARIOPSIS SPP.

30

- microscopically resembles a large Penicillium organism

SCOPULARIOPSIS SPP.

31

- hyaline and septate species of Scopulariopsis (2, both starts with b)

S. brevicaulis, S. brumptii

32

most systemic mycoses are mono- or dimorphic?

dimorphic

33

systemic mycoses often start at what locus?

pulmonary locus

34

systemic mycoses Acquired via

inhalation of infectious conidia

35

Blastomyces dermatitidis: blastomycosis
mixture of suppurative and granulomatous infection o
o

Blastomyces dermatitidis: blastomycosis

36

commonly found in North America

Blastomyces dermatitidis: blastomycosis

37

more common in men than women

Blastomyces dermatitidis: blastomycosis

38


San Juaquin Valley Fever / Dessert Rheumatism

Coccidioides immitis: coccidioidomycosis (asymptomatic and self-limited)

39

dissemination in Filipinos and African Americans

Coccidioides immitis: coccidioidomycosis (asymptomatic and self-limited)

40

asymptomatic and self-limiting systemic diseases (2)

B. dermatitidis
H. capsulatum

41

chronic, granulomatous infection, begins in lungs and invades the reticuloendothelial system

Histoplasma capsulatum: histoplasmosis

42

Cave disease, spelunker’s disease

Histoplasma capsulatum: histoplasmosis

43

found in soil rich in bird or bat guano

Histoplasma capsulatum: histoplasmosis

44

chronic, granulomatous infection (2)

H. capsulatum
P. brasiliensis

45

produces ulcerative lesions of the mucuous membrane (nasal and oral mucosa, gingivae and
conjunctivae)
lesions are ulcerative with serpiginous (snakelike) active border and crusted surface

Paracoccidioides brasiliensis: paracoccioidomycosis

46

South American Blastocycosis

Paracoccidioides brasiliensis: paracoccioidomycosis

47

mucosal lesions are an integral part of the disease process
maybe acquired through trauma to the oropharynx

Paracoccidioides brasiliensis: paracoccioidomycosis

48

focal cutaneous and mucocutaneous infection granulomatous, suppurative and necrotizing

Penicillium marneffei

49

associated with (Vietnamese) bamboo rat

Penicillium marneffei

50

endemic in Southeast Asia
opportunistic

Penicillium marneffei

51

chronic subcutaneous infection


Sporothrix schenckii: sporothricosis

52

“rose gardener’s disease”

Sporothrix schenckii: sporothricosis

53

type of sporotrichosis acquired through inhalation of spores

Pulmonary sporotrichosis

54

acquired through trauma to the hand, arm or leg

Sporothrix schenckii: sporothricosis

55

only rarely disemminated

Sporothrix schenckii: sporothricosis

56

begins as small, nonhealing ulcer on the index finger --> develops nodular lesions of skin -->
involvement of lymphatic channels and lymph nodes

Sporothrix schenckii: sporothricosis

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