MYCOVIRO - CH 60 PPT

Question 1

Microscopic Examination of Cultures (3)

Answer 1

Tease Mount
Cellophane Tape Preparation
Microslide Culture

Question 2

Superficial Mycoses

• tinea versicolor
• lipophilic

Answer 2

Malassezia furfur

Question 3

Superficial Mycoses

- black piedra

Answer 3

Piedraia hortae

Question 4

Superficial Mycoses - tinea nigra

- annelid formation

Answer 4

Exophiala werneckii

Question 5

Superficial Mycoses

- white piedra
- arthroconidia

Answer 5

Trichosporon beigelii

Question 6

• spaghetti and meatballs

Answer 6

Malassezia furfur

Question 7

type of ringworm

scalp/head

Answer 7

tinea capitis

Question 8

type of ringworm

head

Answer 8

tinea favosa (favus)

Question 9

type of ringworm

beard

Answer 9

tinea barbae

Question 10

type of ringworm

body

Answer 10

tinea corporis

tinea imbricata

Question 11

type of ringworm

hand

Answer 11

tinea manuum

Question 12

type of ringworm

nails

Answer 12

tinea unguium

Question 13

type of ringworm

groin

Answer 13

tinea cruris

Question 14

type of ringworm

feet

Answer 14

tinea pedis

Question 15

dermatophyte that infects skin and hair

Answer 15

Genus Microsporum

Question 16

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

Answer 16

M. canis

Question 17

dermatophyte

Bamboo hyphae

Answer 17

M. ferruginum

Question 18

dermatophyte

Thick walled macroconidia

Answer 18

M. gypseum

Question 19

dermatophyte

does not grow on rice

Answer 19

M. audouinii

Question 20

dermatophyte

Favic chandeliers, pectinate bodies

Answer 20

M. audouinii

Question 21

• infects the skin and nails

Answer 21

Genus Epidermophyton

Question 22

No microconidia

Answer 22

E. floccosum

Question 23

Beaver-tail macroconidia (spatulate/club-shaped)

Answer 23

E. floccosum

Question 24

• infects skin, hair, and nails

Answer 24

Genus Trichophyton

Question 25

agent of tinea imbricata

Answer 25

T. concentricum

Question 26

most common cause of athlete’s foot

Answer 26

T. mentagrophytes

Question 27

Cigar-shaped macroconidia

Answer 27

T. mentagrophytes

Question 28

``` 5 day Urease(+) Hair penetration (+) ```

Answer 28

T. mentagrophytes

Question 29

Red pigment in undersurface of colony

Answer 29

T. rubrum

Question 30

Pencil-shaped macroconidia

Answer 30

T. rubrum

Question 31

``` 5 day urease (-) Hair penetration (-) ```

Answer 31

T. rubrum

Question 32

Macroconidia are rare (balloon forms)

Answer 32

T. tonsurans

Question 33

Rat tail macroconidia

Answer 33

T. verrucosum

Question 34

causes tinea favosa

Answer 34

T. schoenleinii

Question 35

favic chandeliers and chlamydospores

Answer 35

T. schoenleinii

Question 36

Colonies are purple

Answer 36

T. violaceum

Question 37

Swollen hyphae w/ granules

Answer 37

T. violaceum

Question 38

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

Answer 38

Sporothrix schenckii

Question 39

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

Answer 39

Sporothrix schenckii

Question 40

Cigar shaped yeasts

Answer 40

Sporothrix schenckii

Question 41

Rosette/flowerette conidia

Answer 41

Sporothrix schenckii

Question 42

Subcutaneous Mycoses | - caused by dematiaceous molds

Answer 42

Chromoblastomycosis

Question 43

Subcutaneous Mycoses | - direct exam reveal sclerotic / copper bodies

Answer 43

Chromoblastomycosis

Question 44

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

Answer 44

Eumycotic Mycetoma

Question 45

Subcutaneous Mycoses | - Most common in the US

Answer 45

Pseudallescheria boydii

Question 46

lesions may simulate chromoblastomycosis

Answer 46

Subcutaneous Phaeohyphomycosis

Question 47

Most common agents of Subcutaneous Phaeohyphomycosis

Answer 47

Exophiala jeanselmei | Wangiella dermatitidis

Question 48

All are dimorphic

Answer 48

Endemic Mycoses

Question 49

Endemic Mycoses all acquired via

Answer 49

inhalation of infectious conidia

Question 50

- detects cell free antigens from mycelial/mold forms

Answer 50

Exoantigen test