Cutaneous Mycoses Flashcards Preview

PH 152 > Cutaneous Mycoses > Flashcards

Flashcards in Cutaneous Mycoses Deck (40):
1

Which is not anthrophilic fungus?
A. M.audonii
B. T.rubrum
C. M.gypseum
D. T.tonsurans

C

2

Identify EA of dermatophytosis
*macroconidia: walls are rough + not parallel. small denticles @ ext wall
*with microconidia

Microsporum

3

Identify EA of dermatophytosis
*macroconidia: smooth walled
*with microconidia

Trichophyton

4

Identify EA of dermatophytosis
*macroconidia: walls are rough + not parallel. small denticles @ ext wall
*no microconidia BUT with chlamydoconidia

Epidermophyton

5

Differentiate tinea capitis fr tinea favosa

tinea capitis: alopecia temporary
tinea capitis: alopecia permanent

6

When does tinea capitis become erythematous?

zoophilic EA

7

causative agent of Tinea imbricata

Tricophyton concentricum

8

Differentiate tinea ungiuum from onychomycosis

Onychomycosis:possibly caused by non-dermatophyte
Tinea ungiuum is caused by dermatophyte

9

enum mst prob EA of tinea cruris

Epidermophyton floccosum
Trichophyton rubrum

10

which is not done in wet mount of cutaneous mycoses?
A. 10%KOH
B. LPCB
C. Parker superquink ink
D. gentle warming

B

11

Which destroys the hair cuticle?
A.ectothrix
B.endothrix
C.both

A

12

Which is seen @ Wood's Lamp?
A.ectothrix
B.endothrix
C.both

A

13

Which is caused by anthrophilic fungus?
A.ectothrix
B.endothrix
C.both

B

14

When to use:
* blunt scalpel
* swab

* blunt scalpel: fr skin, nail
* swab: picking up loose skin / debris

15

When to use:
* forceps
* bone curette

* forceps: hair, loose skin scales
* bone curette: skin fr scalp, skin, perianal, feet

16

severe form of Tinea pedis

Moccasin Foot

17

enumerate members of group 1 Tricophyton

verrucosum
Schoenlenii
Concentricum

18

common feature of all members for group 1 Tricophyton
A)(+) inositol thiamine reaction
B)seldom produce spores
C)requires histidine
D)A and B
E)all of the above

D

19

common feature of all members for group 2 Tricophyton
A)all grow in thiamine
B)seldom produce spores
C)requires histidine
D)A and B
E)all of the above

A

20

Which member of Trichophyton grp 2 may grow on Agar 1

T.tonsurans

21

Which member of Trichophyton grp 2 may perforate hair in 2-3 weeks

T.mentagrophytes

22

sole member of Group 3

T.violeceum

23

Differentiate T.violaceum fr T.tonsurans

tonsurans: lots of microconidia
violaceum: seldom microconidia

24

Differentiate T.megnini fr T.equinum (members of Tricho grp 4)

megnini - req histidine
equinum - req nicotinic acid

25

identify EA
A. white cottony growth with reverse golden yellow
B. thick walled verrucose macroconidia
C. zoophilic

Microsporum canis

26

identify EA
A. cinnamon growth
B. thin walled verrucose macroconidia
C. geophilic
D. usually produces single lesion

Microsporum gypseum

27

identify EA
A. white to cream. powdery/granular
B. "en-grappe", with spiral hyphae
C. (+)for hair perf & urease
D. spherical microconidia

T. mentagrophytes

28

identify EA
A. anthrophilic
B. "en-thyrse" microconidia
C. (-)for hair perf & urease
D. wine red pigment at reverse

T.rubrum

29

identify EA
A. anthrophilic
B. suede like to powdery, pale buff/yellow
C. partial reqt of thiamine
D. variable macroconidia

T.tonsurans

30

identify EA
A. "antler tips" hyphae
B. Chlamydoconidia
C. tinea imbricata
D. does not invade hair

T.concentricum

31

identify EA
A.no macro&microconidia
B.scutula: saucer shaped crusted lesion
C.waxy or galbrous culture
D.tinea favosa

T.schoenleinii

32

identify EA
A. green brown/khaki sudelike
B. Chlamydoconidia
C. no microconidia
D. does not invade hair in vivo

E.floccosum

33

differentiate M.canis fr M.gypseum

M.canis : thick walled macroconidia + zoophil
M.gypseum: thinwalled macroconidia + geophil

34

"en-grappe", with spiral hyphae

T.mentagrophytes

35

partial reqt of thiamine, variable macroconidia

T.tonsurans

36

"antler tips" hyphae

T.concentricum

37

What is scutula and in what mycoses is it seen?

saucer shaped crusted lesion
Tinea favosa

38

"en-thyrse" microconidia

T.rubrum

39

no macro&microconidia
only favic chandeliers

T.schoenleinii

40

T/F. All cutaneous mycoses are caused by dermatophytes.

F. Systemic fungi may also cause