MYCOVIRO - CH 60 PPT Flashcards Preview

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Flashcards in MYCOVIRO - CH 60 PPT Deck (50):
1

Microscopic Examination of Cultures (3)

Tease Mount
Cellophane Tape Preparation
Microslide Culture

2

Superficial Mycoses
- tinea versicolor
- lipophilic





Malassezia furfur

3

Superficial Mycoses
- black piedra

Piedraia hortae

4

Superficial Mycoses - tinea nigra
- annelid formation

Exophiala werneckii

5

Superficial Mycoses
- white piedra
- arthroconidia

Trichosporon beigelii

6

- spaghetti and meatballs

Malassezia furfur

7

type of ringworm
scalp/head

tinea capitis

8

type of ringworm
head

tinea favosa (favus)

9

type of ringworm
beard

tinea barbae

10

type of ringworm
body

tinea corporis
tinea imbricata

11

type of ringworm
hand

tinea manuum

12

type of ringworm
nails

tinea unguium

13

type of ringworm
groin

tinea cruris

14

type of ringworm
feet

tinea pedis

15

dermatophyte that infects skin and hair

Genus Microsporum

16

dermatophyte
Zoophilic
Spindle shaped echinulate macroconidia
Microconidia are rare
Grows on rice

M. canis

17

dermatophyte

Bamboo hyphae

M. ferruginum

18

dermatophyte

Thick walled macroconidia

M. gypseum

19

dermatophyte
does not grow on rice

M. audouinii

20

dermatophyte
Favic chandeliers, pectinate bodies

M. audouinii

21


- infects the skin and nails

Genus Epidermophyton

22


No microconidia

E. floccosum

23

Beaver-tail macroconidia (spatulate/club-shaped)

E. floccosum

24


- infects skin, hair, and nails

Genus Trichophyton

25

agent of tinea imbricata

T. concentricum

26


most common cause of athlete’s foot


T. mentagrophytes

27

Cigar-shaped macroconidia

T. mentagrophytes

28

5 day Urease(+)
Hair penetration (+)

T. mentagrophytes

29

Red pigment in undersurface of colony


T. rubrum

30

Pencil-shaped macroconidia

T. rubrum

31

5 day urease (-)
Hair penetration (-)

T. rubrum

32

Macroconidia are rare (balloon forms)

T. tonsurans

33

Rat tail macroconidia

T. verrucosum

34


causes tinea favosa

T. schoenleinii

35

favic chandeliers and chlamydospores

T. schoenleinii

36


Colonies are purple

T. violaceum

37

Swollen hyphae w/ granules

T. violaceum

38


- associated with gardening (rose handler’s disease, gardener’s disease)



Sporothrix schenckii

39

Lesions may be confined to the site of inoculation or spread along lymph channels

Sporothrix schenckii

40

Cigar shaped yeasts

Sporothrix schenckii

41

Rosette/flowerette conidia

Sporothrix schenckii

42

Subcutaneous Mycoses
- caused by dematiaceous molds

Chromoblastomycosis

43

Subcutaneous Mycoses
- direct exam reveal sclerotic / copper bodies

Chromoblastomycosis

44

Subcutaneous Mycoses
- comparison of color, size, and texture of granules is helpful

Eumycotic Mycetoma

45

Subcutaneous Mycoses
- Most common in the US

Pseudallescheria boydii

46

lesions may simulate chromoblastomycosis

Subcutaneous Phaeohyphomycosis

47

Most common agents of Subcutaneous Phaeohyphomycosis

Exophiala jeanselmei
Wangiella dermatitidis

48

All are dimorphic

Endemic Mycoses

49

Endemic Mycoses all acquired via

inhalation of infectious conidia

50

- detects cell free antigens from mycelial/mold forms

Exoantigen test

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